Date your friends ex? Please post opinions...

My best friend dated my ex girlfriend after I broke up with her. Before he asked her out, he came up to me and asked me if I was okay with it. If it was 3 years ago, then go for it. Just talk to him and tell him that you don't want it to effect your relationship with him, and really see how he feels about it. If he seems like he doesn't think it's okay, then don't go for it. Don't ruin a good friendship for a girl.