I Am Insecure

I'm in a relationship with a man who's currently separated from his wife. He's trying to win custody of his child, and I was helping him sort evidence for his trial. He asked me to go through his messages and screenshot anything that I thought could be beneficial.

Well, I'm going through his messages, I found out that he was texting her about the memories he had about eating lunch at a place they always used to go, and her saying "you know you miss me" with him responding "maybe". This occurred while we were together, and although they aren't recent, I still feel really uncomfortable about the whole situation. He told me that he did it because he was trying to be extra nice so she would hopefully sign over custody of their child or at least be willing to compromise.

The last relationship I was in was also fairly messy, the guy told me he was single when he was actually in a relationship. I obviously left, after finding a bunch of information on the internet and talking to his girlfriend.

I have this nagging feeling that the guy I'm seeing now isn't faithful, but I have no proof, and don't want to jump to conclusions.