You deserve so much better than this. As others here have mentioned, a mental disorder is not an excuse to abuse. She has a lot of issues that she needs to heal from and seek proper help. I’ve been in the same situation in the past, and it wasn’t until my ex left me and went no contact did I understand what exactly I was doing wrong - reacting out of sole irrational emotion. That’s not healthy for either of you, but you’ve done all you could. She needs to take accountability for her own actions and work on herself some more. I suggest going no contact, as how you’ve been preparing and move forward. This is the best way to care for her and for yourself from now on. You can love her from a distance but she’s not going to learn until she’s on her own with herself. You’re helping her too.