Perhaps its time for a 'Tough Ultimatum revisited' thread.
I managed to be brave enough to brake up with her. Its still an almost daily struggle however. We are not in agreement regarding our daughter. And I could tell you some further horror stories on erratic / mad / dangerous behavior on her part. But I try hard to forget it and move on.
When things settle down I will post and let you know. You were all such great support. Thanks!