New potential relationship

So I met this guy on an online dating site, and have been talking to him nonstop, texting, phone calls, and FaceTime for the last month or so. And plan on meeting in person soon.I have really started to like him. He had mentioned before that he has never been into social media so I didnt think to even look. Well I got curious the other night and decided to search him on Facebook...found a profile that completely shocked me. The profile I found was clearly him however with 2 children and another woman. And the relationship status said engaged.So I of course mentioned it to him. He told me that the profile was in fact him and that it is a shared account with him and his Ex who he shares 2 kids and a home with. And that they have been split up for a few months and currently only their parents know about it. But planned on waiting until after the holidays to tell the kids and the rest of family. Also said that he felt like that was something that he wanted to wait to see if it was gonna work out first and he wanted to tell me in person and was waiting until we meet in person. (In a few days) I guess Im just having a hard time believing him, I just get the feeling that hes not out of the relationship at all and is wanting to use me...to cheat or as a way out. He has assured me that that isnt the case however I just dont want to mess up a family. Ya know?

I mean we havent met In Person yet and are not dating but he talks as if he wants something more. I have been cheated on and left in the past and I just cant imagine causing that kind of pain to not only her but his children as well. Am I just being crazy? Lol Opinions greatly appreciated.