There are three reasons why she is mentally abnormal:

First, they are insecure and need men's protection, but they have no 100% trust in men and are afraid of men's betrayal, so they often dump their boyfriends first;

Second, there are changes in the family, forming a sense of loneliness from an early age, needing the comfort of men and worrying about men;

Third, I haven't found my self-worth.