You have stated where you are, so has she. She is escalating because you won't comply (ie move out). That has wrecked her fantasy.
Practice these:
I understand how you feel, and you do what you must to make you feel safe and happy.
If you feel you need the space, I understand. However, I am not moving out.
I understand how you feel and if you need to do xyz, I don't agree, but I won't hinder your actions.
She is trying her hardest to get you gone. If she addresses bathroom trips, say "That would be worrisome, but I am sure your doctor will have some answers.
Forgive me but sounds like UTI, bladder, or STI. Or drinking too much water...
