I met my boyfriend when I was 18 and he was 22. It took no time at all for me to recognize just how amazing of a person he is. It was even a little intimidating at first. I have struggled with weight for most of my life and never really developed the self-esteem required to pursue men. This one, in particular, I find very attractive, and I never would have though he would want to spend any time with me at all. Some may even say that he is "out of my league". Regardless, we hit it off right away and, four years later, our relationship has developed into something beautiful.
Despite the nice, flattering things he says to me, those insecure feelings I had at the beginning of the relationship still linger. I see him look at other women, and while I know that it's completely natural for him to do that, I compare myself to them and feel inadequate. When he talks to other women, even if I'm there and can hear just how innocent of a conversation it is, I feel nervous. For example, he was talking to his brother's fiancé about a TV show they both watch. I notice that they have something in common and fear that they will run off together, or that she will try to fix him up with one of her friends. I try not to express it, though, because I recognize how ridiculous that sounds.
At this point, insecurity has turned into jealousy causing frustration and fights. We really haven't had ANY problems up until now. I fear that it is all my fault and I am willing to do almost anything, as long as it saves my relationship. Any advice?