Narcissists will try their game with everyone. They infiltrate with people who can't enforce their boundaries. For example, a narc love bombs you then smacks you in the face. Healthy people who have healthy boundaries would walk away and never look back (and file a police report). But some of us go and say, but they are so nice most of the time! I feel so good when they say all those nice things! If I'm just nice enough, tiptoe around them enough, say all the right things, they will praise me again. We unhealthy people (me included) ignore these breaches of boundary and, in a way, allow the abuse by not walking away the instant it happens the very first time. Many people speculate that if you grew up with abuse like this or were groomed for it that it's hard to reprogram yourself to walk away from these people the second they behave badly. I agree with that. I am finally starting to implement boundaries, and I've recently been purging people who don't respect boundaries from my life.

I don't think everyone is a narc, but I think a lot of people are unhealthy and not emotionally aware of themselves.

The other thing is that if you confronted this person on how they hurt you, they'd turn it all around and blame you, and not express one iota of regret that anything in the interaction hurt you. A good friend or reasonable person would express regret that you'd been hurt and talk about it. They might be a little defensive, but they'd want to work it out. In my experience, people like this (I don't like to label them narcs) don't care about repairing the relationship. They just want you to shut up and take it.

I don't know if this rings true for anyone else.