Your mean girlfriend has narcissistic personality disorder. She is disappointed by you constantly. She doesn't respect men. She feels entitled to the best things in life and resents you for not providing them. She will physically and verbally abuse you if you upset her. Unfortunately, it doesn't take much to make her angry. She shows love and affection in order to manipulate men. She lies often. She is not loyal and will cheat. She will not allow a peaceful breakup and will resort to violence.