but in may 2013, detective joey ramirez was far from happy.d a lot of ground to cover and a strong sense that time was against him as he tried to figure out what had happened to maribel ramos. >> just vanished? >> yes. >> how often does that kind of thing happen? >> it doesn't happen often. >> reporter: ramirez started by investigating the men in maribel's life. it turned out there were a few of them. >> did you know she was doing all that online dating? did she talk about that? >> yeah, she did. >> reporter: maribel sometimes met guys through a website called "plenty of fish." that's how she found paul lopez. they'd been dating for a few months and paul had even joined her weekly softball game. lopez was the last person maribel talked to on the phone. now police wanted to talk to him. >> you know you're not under arrest, anything like that. >> i wouldn't think so. >> reporter: ramirez sat across from paul and asked about his relationship with maribel. >> nothing's been like exclusive, it's just been, you know, dating. >> you date other people