I said it before that no matter what her back story was I would still be against her. No matter how bad she has it, it still doesn't justify shitty behaviour. Still sticking to it.
I do understand where you're coming from but, given the circumstances she was alone for such a long time doing everything she could do on her own and somewhere it twisted her personality(idk how tf the mc hasn't lost his mind yet due to all the loops).
From an ideal perspective you could say she didn't do right and you already know no one's perfect if you do something there is always a better way to do but, at that time you did the best what you could. So instead of just plainly criticizing someone's action understanding why they did it and help them understand it, it's the good choice.
I know she did mistakes and I hope she get's better with the help of others.
But straightforwardly rejecting her persona is not what I think is a right mindset to have.