No two people are alike. Even subjects suffering from the same personality disorder can be worlds apart as far as their backgrounds, actual conduct, inner world, character, social interactions, and temperament go.

Are all personality disorders the outcomes of frustrated narcissism?

What constitutes normal behavior? Who is normal?

The narcissist lacks empathy. He is, therefore, unable to meaningfully relate to other people and to truly appreciate what it is to be human. Instead, he withdraws inside, into a universe populated by avatars - simple or complex representations of parents, peers, role models, authority figures, and other members of his social milieu.

Narcissists invariably react with narcissistic rage to narcissistic injury.