this is "nightline." >> tonight swiped. the grad student swept off her feet by the man of her dreams. ending up nearly $200,000 in debt. >> it's just so painful. i just hate that i did this, you know? >> the dark side of dating apps. breaking hearts and the bank. plus, it's a boy. >> hey! >> the duke and duchess of sussex welcoming their first child. the giddy new dad making the announcement. >> it's been the most amazing experience i could ever possibly man. >> the story book romance that started it out. >> i barely let you finish proposing, can i say yes now? >> the couple's son making history. and haute look.

a fashion night at the museum. the outfit changes sending the red carpet into a frenzy. but first the "nightline 5." only tylenol rapid release gels have laser-drilled holes. they release medicine fast, for fast pain relief. tylenol. the new roomba i-7 plus is your floor's best friend. only roomba uses two multi-surface rubber brushes to grab and remove pet hair. the roomba filter catches 95% of dog and cat allergens. our three contestants are all at the big ikea table. contestant #1, impressive knife skills. but contestant #2 fights back by using fresh parsley. make room for the judge! live together. lounge differently. ikea.

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charismatic casanova whisk one grad student away into a dream she says quickly morphed into a nightmare. her world spiraling into chaos, sinking her into debt, leaving her fearing for her life. here's abc's james longman. >> reporter: he was handsome. charismatic. and seemingly wealthy beyond measure. for celia feloy, it was an easy decision to swipe right. >> this guy simon comes up on my phone. you can see that he lives a very different life than what i'm living. he had some selfies, a picture in a nice car. you could see that it was a private jet. it is an overall package. >> reporter: the 29-year-old grad student studying in london says she was immediately swept off her feet by simon and swept into a high-powered world of luxury. >> just his aura and charisma. >> reporter: after all, most of our dates don't end with a trip on a private jet. they take you to get on this plane and you go to bulgaria?

>> yeah, i was texting my friends at the same time, like i don't know what's going on. >> you stayed with him. >> yeah. >> you had a nice time. >> yeah. >> then you came back to the uk, then what did you think? this was going to continue as a relationship? >> when i started feeling, okay, this guy is actually really nice and funny, and he is someone that i could date, and like maybe have something with. >> reporter: a dream of finding mr. right went horribly wrong. >> i hate him. it's so horrible. >> reporter: celia says simon told her he was an israeli millionaire with a nickname the prince of diamonds. but he wasn't who he said he was. >> i'm sorry i'm crying over this. but it just comes, i can't help it. it's just so painful. because i hate myself. i just hate that i did this, you know? >> reporter: according to celia, their brief romance turned into a real-life nightmare. celia alleges simon defrauded her out of $200,000, leaving her spiraling into debt, suicidal,

and fearing for her safety. >> he manages to do this because he is a great guy who pretends that he cares so much for other people, so you want to care for him as well. >> a lot of people watching might think, if it was 3,000 or 4,000 pounds i would start to feel like i need this money back. you let it get to 200,000? >> i know it sounds so crazy for people, but the sums weren't a lot. and i could see the spend that he did on my cards. >> reporter: she's now speaking out warning others about the dangers of online dating. simon, born shimon, a 28-year-old convicted con man who served three years in finnish prison for defrauding several women to fund his lavish lifestyle. >> when i'm reading the messages, i see how much talk there is about the banks. it's like, you're so stupid, you know? >> reporter: celia says she was lulled into a false sense of security by his grand romantic gestures and flowery declarations of love. >> i will support you, i will

help you, we will lift each other, you're nice, you're cute, you're sweet, you let me do what i need to do and i really, really appreciate it. >> reporter: for celia the relationship started out innocently enough. >> this was the first time where i felt, oh my god, i really like him and it seems he really likes me back as well. you like the feeling of being liked. >> when do you consider yourself to be his girlfriend? >> i think it was maybe a month after that. >> reporter: she says simon told her his job as a diamond dealer kept him traveling constantly. they dated long distance. their romance conducted via modern-day love letters in texts. video messages. voice recordings. >> i wish you a great and a beautiful and a successful and amazing day as you, kisses. >> reporter: simon stole away to london when he could, but more often than not he flew her to where he was, always alluding to an element of danger in his job that kept him away, jetting around constantly on private planes. how often would you see him on a

weekly basis? >> i saw him like in london the next week. and that's when he started that he couldn't come back to london because of the 3s that he had been getting. >> within a week he was already saying to you, i can't come back to london, there are threats against my life? >> but he could get me to where he was. >> reporter: she says simon claimed to be under constant threat from unknown, nefarious enemies, a hazard, he said, of working in the diamond business. there's nothing during this time that's making you think, this isn't real, he's fake? >> oh, no. no, no, no. >> good night, my love. i miss you so much. i can't wait to see you. >> reporter: celia says that simon surrounded himself with people who helped perpetuate the myth, going so far as to send videos of himself and his board guard in the hospital after they were allegedly attacked. soon another strange element to his story. she says he asked her to extend her line of credit to him so that plane tickets, hotels, and dinners would be booked using

her name, keeping supposed enemies thrown off his trail. how do you go from being with someone who's presented as a very wealthy man, to someone who you now need to give money to? >> protection. i know it's not right but he needed my name as a cover, he said. >> protection from? >> his enemies, as he's calling them. >> you just believed him when he said that? >> i know it sounds so crazy. and i wish i could take everything back. it's more like when you have a bodyguard, why would this giant guy be with him if he didn't need the protection? >> reporter: celia says she relented because simon promised to pay her back, but the repayments from simon were nowhere to be seen, despite his us sister tense they were on their way. >> emails that he needs to be able to just function for a week, it's just so much. it's never just a few thousand for us normal people, that is a lot of money, but for him it's not a lot of money. >> how could you have trusted him to take out that amount of

money? >> of course he has the money so he will pay me back. you didn't even think that it was a problem when you were taking out the loans because you were so sure that the money existed. >> apart from anything else, you loved him? >> yeah. i think that's the hardest part of it. like when i realized that he wasn't who he said he was. it was the love aspect, the person that i thought that i knew and loved, he had just done this in the most evil way. >> reporter: suddenly celia's dream romance was crushing down around her. >> two guys from american express come to you. they say that's him, that's the guy. they told me they had had a long investigation on him already. and that i was a string of four, five women. i almost wanted to throw up. everything just came crushing down at once. >> reporter: celia alleges that simon was continuing to run the same scheme that put him in finnish jail just a few years

ago, using her money to fund his luxury lifestyle, and lure other women into his orbit, a cycle doomed to repeat itself. >> i had to be put into a psychiatric ward because of suicidal thoughts. i didn't see a way out. you lost your boyfriend, and not that he dumped you, he never existed. he was never your boyfriend. >> reporter: celia filed a report with the metropolitan police in london, who declined our request for comment. american express told abc they do not comment on open investigations. meanwhile, simon says he's in panama, telling us via text he is innocent. there's nothing here, just a loan between friends that went south, she agreed to loan me money then she disappeared, not answering phones or emails or letters before we were able to pay her back, they used me for my life and got expensive gifts and everything, in other words, gold diggers. when i ask help they agreed to help and they know that i have some problems. i didn't run from no one, it's all fake news and lies. for now celia remains in london

trying to rebuild her life. >> i see a difference in myself when i talk to people. >> maybe less naive. >> much less, much less naive. >> reporter: for "nightline" i'm james longman in london. up next, from duke to dad. prince harry beaming with pride for his bundle of joy. can change in minutes. your head wants to do one thing... but your gut says not today. if your current treatment isn't working... ask your doctor about entyvio®. entyvio® acts specifically in the gi tract, to prevent an excess of white blood cells from entering and causing damaging inflammation. entyvio® has helped many patients achieve long-term relief and remission. infusion and serious allergic reactions can happen during or after treatment. entyvio® may increase risk of infection, which can be serious. pml, a rare, serious, potentially fatal brain infection caused by a virus

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tonight the newest british royal. the half-american baby sussex arriving them morning. a boy not yet named. the first child of prince harry

and duchess meghan markle, doing everything their own way. now their son, a historic birth in the line of british royals. a prince beaming with that familiar awe of a new dad. >> meghan and myself had a baby boy early this morning. a very healthy boy. mother and baby are doing incredibly well. >> reporter: prince harry and duchess meghan markle's firstborn son arrived at 5:26 a.m., weighing 7 pounds 3 ounces. >> it's been the most amazing experience i could never have possibly imagined. how any woman does what they do is beyond comprehension. but we're both absolutely thrilled. >> oyez, god bless america and god save the queen! >> windsor has gone crazy ever since the announcement. there are people and cameras everywhere. and it is just absolute madness.

>> reporter: my colleague will reeve hl fans. >> it's wonderful! >> reporter: the birth, historic. >> people have been camping out as well, sleeping in sleeping bags waiting for the news and stuff. >> yeah, waiting for everything. >> yeah. >> reporter: the baby the product of a first interracial marriage in the british monarchy that dates back more than 1,000 years. >> baby sussex is going to be one of the most famous children in the world and be scrut newsed, in and out least because baby sussex is the product of the first globalized world marriage and is going to be half american. >> still thinking about names? >> still thinking about names. yeah, the baby's a little overdue so we've had some time to think about it. yeah that's the next bit. >> reporter: he's the queen of england's great grandchild and seventh in line to the throne

after kate and william's children. >> they are very unlikely to become a full-time working royal when they grow up. >> reporter: the couple announces they'd been keeping the plans around the baby's birth private. a statement from buckingham palace saying, the duke and duchess look forward to share the exciting news to everyone once they have had the opportunity to celebrate as a private family. >> it's interesting how the duke and duchess of sussex have chosen to play this. he'll use to it protect his wife and now his little boy. >> reporter: privacy wasn't an option for prince william and kate middleton's first child, prince george. the duke and duchess of cambridge duty-bound to present the next heir to the throne to the world only hours after he was born. long before harry met meghan, the prince made no secret about wanting to become a dad. >> i adore kids. i enjoy -- i enjoy everything that they bring to the party. they just say what they think.

>> the way you talk about children, is it something that you think about in the near future or down the road? >> i think the advantage is being an uncle before having your own kids, means you can learn a lot and a lot of my friends have got kids at the moment. so i'm making the most of learning as much as possible, and actually i can't wait for the day. >> reporter: fate intervened in the summer of 2016 when a mutual friend set harry up with meghan, an american actress best known for her role on the tv show "suits." >> i couldn't have done it without you. >> you wouldn't even know where to look without me. >> i had one question, is he nice? if he wasn't kine, it didn't seem like it would make sense. >> i was beautifully surprised when i walked into that room and saw her, there she was sitting there. wow, i really have to up my game. >> reporter: just a few months into their budding relationship, british tabloids descended on them with racially charged headlines and commentary, like this one from "the daily mail" that read, harry's girl is

almost straight out of compton. >> she's been subject to incredible online abuse, as has kate middleton, but i think there is this component of race that harry addressed even before they were married. >> reporter: prince harry defended meghan in an unprecedented royal statement calling out the racial undertones of comment pieces and the outright sexism and racism of social media trolls. >> it's a shame that that is the climate in this world, to focus that much on that, or that that would be discriminatory in that sense. but i think, you know, at the end of the day, i'm really just proud of who i am and where i come from, and we have never put any focus on that. we've just focused on who we are as a couple. >> reporter: a year and a half after they first met, prince harry put a ring on it. their wedding in many ways unprecedented. >> meghan markle has broken most stereotypes of what we thought of as british royalty.

she is american, so that's its own bridge. she is biracial, another bridge. >> reporter: the day captivated both brits and americans. 29 million people tuned in to watch it live, and more than 100,000 well-wishers lined the streets around windsor. then, just five months later -- >> bombshell royal news, duchess meghan is expecting a child. >> reporter: pregnancy didn't stop the couple from continuing to travel around the world, in service to the causes they hold dear. like championing girls' education in rural morocco just this past february. their humanitarian work reminiscent of another royal. prince harry's late mother, princess diana. she used her fame to focus the world's cameras and compassion on issues like homelessness, leprosy, and hiv/aids. >> hiv does not make people dangerous to know.

so you can shake their hand and give them a hug. heaven knows they need it. >> diana was all about making the monarchy more approachable and accessible, and i think meghan and harry are breathing into that. >> what do you think your mother would have thought about meghan or said about meghan? >> they'd be thick as thieves, without question. i think she'd be over the moon, jumping up and down, so excited for me. but then as i said, we'd probably have been best friends, best friends with meghan. >> the world has watched prince harry, the son of princess diana, grow up. we've lived and breathed the highs and lows with him. i think for so long people have wanted him to have his own fairy tale happy ending. >> i'm incredibly proud of my wife. as any father or parent will say, your baby is absolutely amazing. but this little thing is to die for. i'm just over the moon. >> reporter: as for when we'll see a first glimpse of their newborn? >> we'll be seeing you guys in

probably two days' time as planned, as a family, to be able to share it with you guys, so everyone can see the baby. >> reporter: the world will just have to wait a little longer. and our warmest congratulations to the new mom and dad. up next, more is better. the fashion looks serving up a new meaning of looking fabulous. 'y place as clean as i would like 'cuz i'm way too busy. who's got the time to chase around down dirt, dust and hair? so now, i use heavy duty swiffer sweeper and dusters. for hard-to-reach places, duster makes it easy to clean. it captures dust in one swipe. ha! gotcha! and sweeper heavy duty cloths lock away twice as much dirt and dust. it gets stuff deep in the grooves other tools can miss. y'know what? my place... is a lot cleaner now. stop cleaning. start swiffering.

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so it bounces back. our three contestants are all at the big ikea table. who's going to be tonight's winning chef? contestant #1, impressive knife skills. but contestant #2 fights back by using fresh parsley. and, contestant #3 adds a touch of sweetness. sweetie, come eat outside. but it's too hot out there! perfect! make room for the judge! ♪ ♪ live together. lounge differently. ikea. ♪ ♪ today, life-changing technology from abbott is helping hunt them down at their source. because the faster we can identify new viruses, the faster we can get to stopping them. the most personal technology, is technology with the power to change your life. life. to the fullest.

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finally tonight, go big or get off the red carpet. fashion's biggest night, the met gala in new york city. this year's theme, camp. bring your all, go over the top, just feel fabulous. and the grand entrance topping it all? lookdown tond act.her fir then the third bold number. and the show-stopping climax. a risque finale, leaving the crowd in awe. now that's a show stopper. that's "nightline."

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