My boyfriend and I have been together since November, and made it official in January, breaking my wall down and letting myself be in a relationship was somewhat difficult given my past of being hurt. So we began this relationship and everything has went wonderfully and I am positive he is the one for me. In March, a girl had told him I was seeing someone else, which I was not. He had gone through this before in a past relationship and became upset (was also drinking at the time he had heard this, when I saw him later on everything seemed fine and he never mentioned it. A few days later he asked about it and I told him it wasn't true, he said he knew it couldn't be. He then asked again seeming more concerned a couple weeks later and I promised it it wasn't. So a few weeks later I had a strange feeling, and checked his text and looked at only one, it was a girl he had casually dated before me, he had texted her inappropriate things for a couple days following the night he had heard I had been seeing someone else. I confronted him, obviously very upset, he said he was just feeling horrible about what he had heard and instead of talking to me about it he let it hurt him and he reached out to someone from his past, promising nothing physical ever would have happened. And I believe him. We spend all of our free time outside of work together and he treats me very well, I know he would never cheat. So we were able to move past that, but ever since I have been very insecure and I've begun stressing out about his past relationships. It keeps me up at night and I am terrified that something like this will happen again. I do not think it will, I think I am thinking the worst and looking too much into everything. He feels awful and makes sure I am okay at all times because he knows I am struggling. I just don't know how to get past it. Please help!