[@MiddleEarthRoze]Well I had no idea what else to call them so I apologize to that, I did not mean to offend. Ultimately my knowledge for mental illnesses are lacking with knowing few of the more mentioned ones but perhaps I'll look more into them to narrow it down. I mostly say split personality due to the fact her personality did a flip after the main traumatic event with her abusive parents and that personality began simply as an imaginary friend in her younger years though less hostile of course. Though seeing as you might have better knowledge do you have any suggestions on a better choice for mental illness?

I'll take the advice you have given and work on the bio a little later.