Yes I do....but I haven't been in your situation before. I would honestly say good bye and walk away at this point. Like others said, don't be friends just because you were BFFs has kids. People tend to grow apart over time, and it doesn't make either of you a bad person. If she's being abusive and manipulative though....that's intolerable behavior for me. But you should do whatever you feel is right. And breaking off doesn't have to be bad or ugly.