The Ultimate Vampire Resource and Directory

So, my boyfriend and I have been dating for three years now, on and off a lot, but that was because it was long distance for about two and a half years. It'll be four years together in June. We've had a lot of ups and downs, a lot of fights, that well...i won't discuss those. Anyways, he's been talking to his ex-girlfriend a lot lately, even though he knows it upsets me. The reason why it upsets me is because he dumped me at one point in our relationship to date her, and she turned him down, and after two months of being depressed ran back to me, and silly me, I love him so much I took him back. However, he never wants me to see/ask/know what they talk about, but I happened to see it at one point and they speak about sexual things. Am I wrong to think that they're doing something behind my back? Or that he'll someday hurt me? Am I stupid or jealous, or just insane? I hate all this crap that he's putting me through, sad thing is, he doesn't know that I know, otherwise I would be in the wrong, then he really would leave me and I'm not sure whats worse, pretending stupidity for the sake of our relationship, or confronting him about it and having everything escalate into a full out "war" Can't talk to anyone here so I thought i'd write in my journal. guess this is what i deserve for some of my past, oh well.