
She had a fierce temper. She pissed off a lot of people. That's because she liked cats more than people. She was wicked smart but had "gifted kids syndrome" and suffered from depression and anorexia, so her life never quite went in the direction of her childhood dreams. She made a lot of mistakes, but learned from most of them.
She felt empathy so strongly that she was frequently overwhelmed by it and lashed out at those she felt were harming the ones she felt empathy for. She had a strong protective streak, but not a maternal one - it was more like an avenging angel of punishment and retribution, only without any cool superpowers.
She was not good, she was not evil; she was a meat body driven by a belief engine and influenced by her environment and experiences, which means that she was flawed but she tried, and that's OK.