I've been dating this guy for almost 5 months now and everything between us is great. He is a very sweet person who's hardworking and very forgiving. We have an agreement that neither of us wants a relationship right now, but we don't date other people. We have gotten VERY close. He and his ex were together for two years and they still communicate and have seen each other quite recently at a basketball game. Their breakup was over a misunderstanding so it wasn't something they really wanted to do, but that was over a year ago. I tried to ignore the fact that they still talk because I'm trying to trust him, but there was a tiny... Ginormous... Voice telling me that something wasn't right and my voice is never wrong. I decided to go through his phone one day and found text messages between them that were inappropriate (pictures, them talking about sex, etc). I didn't bring it to him because I mean... I went through his phone, how does that make me look when we are just "dating"? There were also several times when I was with him and she called him at a late hour. I don't want to seem crazy, but I don't think its fair that we can act like we're in a relationship yet I can't say anything about this because of technicalities. I've never told him that I know what I know, but I have voiced that I don't like him talking to her and he claims that since he's with me everyday I shouldn't be worried about her. He also stated that me bringing her up all the time is going to make him talk to her about it which is bs to me because that's what you have friends for. I think she wants him back.. I don't know about him though. I don't know... What should I do ?