What is the cause of personality disorders? My ex gf was very good at the beginning, after a few months she started to really abuse me

She did tell me she was abused growing up

I suggests that genetics, abuse and other factors contribute to the development of obsessive-compulsive, narcissistic or other personality disorders. some believed that people with personality disorders were just lazy or even evil.

But at the same time this is just a thought

ya need more chromosomes boi