Well, I told her that her proposal didn't work for me, and she got pretty angry. She accused me of robbing her to better myself, and said she felt cheated. She acted like she was some big victim and this thing just happened to her and she didn't see it coming. I just stayed calm and matter-of-factly pointed out that this is all her decision and choice.
She ultimately agreed to the proposal my lawyer sent over before.
No idea who that woman was. It's like I've been dealing with her sister through all of this. The way she is "thinking" is so far removed from how she used to think, and very reminiscent of how I'd expect her sister to deal with things.