It's certainly possible. A narcissist may date another narcissist that is more selfish than they are to feel better about themselves. In turn say "i'm not as selfish as he/she is so that makes me above him/her). It's incredible and shocking the way people with this disorder think. It takes a lot of research to understand a narcissist.

A borderline. Essentially a more emotionally reactive narcissist.

I wouldn't answer. It sounds like he needs to get off his pedestal and by taking the call its not making him a better person.

He is a narcissistic jerk.

Be careful if you do, the narcissist can be a monster to anyone who hurts their pride.