[UnDeath]

yeah man, be callous in this. As black and white with her as you can, either she stays with you, and you continue as usual, or ya kick her to the curb and be short with her until she gets the point...
But nobody but you knows the entire story, so do what feels right, and try to just look at the situation from all sides, including hers, so see whats up.
other than that, just scream inconherently when she comes within 5 feet of you, wherever you may be, and when she leaves that radius, act like nothing just happened... :/