Stay away from her. Like higher4hockey said, I would not want one of my friends dating my ex's. And like clever421 said, this is something that could, and I bet would, probably really, really hurt him. And as slipknotpsycho said, she could just be using you. I mean, there can be exceptions, but in this case they hate each other, and in that case, you need to stay on your friends side. You don't need to get involved, but you need to choose who it is you're gonna continue to have in your life and your friend is much better than some pussy.

Also, did you first meet her because she was dating your friend, or was she like someone you met but the only reason you ever saw her again was because she dated your friend? If so, then you shouldn't even see her again after they broke up. Keep away.
AR15 Reviewed by AR15 on . Friend's ex-girlfriend...sticky situation Well, I've suspected this for awhile, but I went to a party on Saturday night and I can't deny it to myself anymore...my friend's ex-girlfriend wants me badly. She touched me at every available opportunity, commented on how thick and soft my hair is, commented on how "sexy" the salmon-coloured '70s shirt I was wearing was, laughed at anything even mildly amusing that I said, stared at me a lot, and at the end of the night insisted that I come to another party next Saturday (and made me give Rating: 5