<human>: I have never been one to hold someone's past against them. My boyfriend and his ex had some really wonderful experiences together, and she is friends with quite a few of my friends and his friends (We all grew up in the same small town). I see her more often than I'd like to.

Even though I know he loves me and no longer wants to be with her, I am continually letting the idea of her and him together eat me up inside. It is driving me insane. I cannot seem to get over the fact that she is going to be around us occasionally. 

I know that he will probably always love her, because it was his first love. She broke up with him almost two years ago. Him and I have been friends for a while and sort of just fell in love without expecting to. He makes me very happy but I am contemplating breaking up with him because of my own insecurities. I can't seem to get this girl out of my head, half of what he owns is from some place they've been together or something she has bought him. It's impossible not to think of her or to go a day without hearing her name from one of my friends. 

I constantly compare myself to her, and dwell on his past with her.

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<bot>: My own insecurities of my boyfriend's past love is making me want to leave him. Can anyone offer some advice?