Heres my story:

I was with a girl from high school, we lost our virginity to each other, and i loved the shit out of her. A few years into college she broke it off with me and I was fucking devastated. I knew she would try to come back to me after fucking someone else, which is exactly what happened. I told her to fuck off and (after a year long nightmarish shame-spiral) I dated a couple other girls . My relationships with other girls never last very long, and in between (and one one occasion, during) I end up fucking my first ex. It usually starts with a drunken booty call, then we start casually hanging out, etc. She always wants to start dating me again, but I ultimately never let it happen. I always have the best sex with this chick, better than any other girl Iv'e been with, and it kills me to think of her doing that shit with other guys. She has been practically begging me to date her for the last 2 years, but I just can't forgive her for being with other people. She broke up with me fully expecting to come back to me later. Fuck that. The really fucked up thing is that she has no problem finding someone new when I break it off with her; meanwhile I'm completely alone with no leads to another girl. To compound all the ego-strain, my best friend has a new girl every other week. He calls me up like "dude, remember that chick i met blah, blah, blah, I fucked her and she was such a freak blah, blah, blah." Granted, every girl he finds is fucking insane. Its been like 6 months since I fucked anyone except for the ex thats causing all the problems and I just cut that off again last week. I need to get over this shit before i snap.

I wrote it all kind of quick and angry, so I hope it makes sense.