there was a teensy problem in their paradise, mike dippolito was married. h friedman arranged a quickie divorce so the ballad of mike and dalia could begin. >> he fell in love with her. he thought she was the end-all, be-all. he felt as though, "this was it. and i'm gonna have a family with her and we're gonna grow old together." >> he thought she was the real deal? >> they hit it off right away. they had a lot of things in common. they enjoyed the same things. >> dalia is a real estate agent? >> yes. >> and that's what attracted him to her. >>> this is "dateline." >> i learned that he was arrested. i was shocked. i was so confused. i didn't think it was real. >> in the rarefied world of the ivy league, he was a total package. star student, gifted athlete, wildly popular. >> he is one of the nicest guys ever. >> so one could understand how a weekend visit to his parents' house -- >> you have -- >> yes. >> ended in