Both my parents are narcissists so I can tell one thing off the cuff. Narcissists can be charming like hell when they wish to seduce you. The person you mentioned is a jerk for sure and you are right in having no further contacts with him. If he is a narcissist, then you are lucky he showed his hand so quickly. It is also possible that the 'charm' didn’t quite work on you, in which case I congratulate you. Keep that radar open at all times!