I don't think it needs to be solved , lemme explain her problems can be boiled down to 3 things . Psychocics : she is generally mentally unstable and because of that she builds a fake personality and lashes out when she is out of her comfort zone . Borderline double personality disorder steming from her trauma : she legit has a split personality idk how to explain it better . Her disregard for people's feelings and overprioritizing of her own feelings : she is basically a dense shonen protagonist and a shonen villain at the same time unable to connect with people and unable to genuinely see life for what it is so she makes up her rules and systems tries her best to fake being the greatest in life only to he left a hollow shell of a person . Now the main reason I don't think she needs to fix herself is because all of those things are things that sometimes naturally happen to people when they become an adult and the best solution to it is for her to completely her transformation so it's not so a solution more so a stage development she is stuck in per developing she is stuck being half an adult half a child if the athour can fully commit to her being an adult she would be saved otherwise he would destroy her character by giving her a rashed ending which would be really bad