Lynn, so sorry for both you and your daughter on this, have had similar stuff happen before, but I am glad it sounds like her aather at least is somewhat awre things aren't quite right with the girl. I hade a friend once who started off down that road. Honestly, stuff ant home weren't going as well as they seemed on the surface and the kid was seriously disturbed by highschool. Her unwillingness to let the situation drop is really worrisome, but more for her I think than your daughter.

I would just try to let it die a natural death now and as you have been, try to keep the girls apart. It doesn't sound like this kid is heading anywhere happy. I'm sorry. HUGGGGS and I hope her atttention gets turned elsewhere.