IMHO your error was letting her access to YOUR home and allowing her to talk to you like that.

Change the locks and tell her that her mail is going to be forwarded somewhere else. Then just don't talk to her AT ALL. You need to go cold turkey on her.

M-43 W-40
2D - 9 and 5

Emotion, yet peace.
Ignorance, yet knowledge.
Passion, yet serenity.
Chaos, yet harmony.
Death, yet a new life.

RECONCILED AND WISER