Hi mrb023077,

This "friend" of yours is either:

A) Remorseful for the way she acted (but she doesn't feel the need to apologize, which is really screwy in my opinion). If this one was the case, you could stick around. But if it turns out that she's just using you to an end, then you could wind up hurt.

B) Unstable. Plain and simple. Totally agree with fayerody on this. Walking away might be hard, but its better (I think) for you in the long run. Take care of you first.

I hope this situation works out for you.