She is depressed. She thinks she's better than others even though she has a low self esteem. She feels like people should forgive her and give her another chance, and genuinely regrets her past. She has massive anger issues because she doesn't have anyone to talk to, and that makes her go into a self depreciating rampage every day. She hates anyone who has a better life than her, but if someone tried to be her friend and understand, she'll be funny, protective of them, and maybe even possessive.