sometimes people genuenly dont know theyre toxic, but even if they dont you still shouldnt go back to them until they get help and figure out their problems, or she could be trying to manipulate you further. either way, i think you should stay away as best you can and talk to someone about your problems. how youre dealing with what youre going through isnt healthy and you should seek help, although i understand it is hard, beliebe me i do, you just need to talk to someone, anyone at all in your life and try to turn your life around. i hope things turn out well for u :)