Shesaid she felt like she could jump out of her skin
This is EXACTLY how an addict feels when they aren't using but wish they were. Using drugs is very normal and comfortable for addicts. Not using is very uncomfortable and pure anguish. We don't know how to deal with normal feelings.
I'm sorry she is dragging you through all this. It's not you. It's the addiction. It's a horrible thing. Don't take it personally. It's her demon.