Personality disorders are a prime cause of interpersonal conflict. I’ll be writing a lot about this topic. There are a lot of psychological abusers out there masquerading as people.
Generally, people tend to hate those who make them feel their own inferiority. And since that’s just about everybody, there is a lot to talk about.
Like Baskin Robbins, there are many flavours of mental illness. The current DSM is over 900 pages long. Narcissism, Borderline, Histrionic, Antisocial – these make up the flavours of the cluster b disorders.
Google it. You will learn a lot about the people who make your life miserable, so you can avoid them forever.