Go to couples therapy. If she refuses, you'll be faced with the decision of things remaining as they are...or considering if you need a change. Its a big decision.

I agree with Skeezyks that you aren't in a position to diagnose her nor can you force her to change, get help, etc.

I also think Marilyn is spot on correct. I was married to a diagnosed narcissist. We divorced, he's the same...just not my problem anymore. They don't change because they cannot see anything about themselves is flawed. Their insecurity is massive so they can't admit to fault. A T told me that a narcissist can only be in a relationship with one person: themselves. Mental health professionals can only make a diagnosis. Heck, I was with him for 20 years and didn't know he was a narcissist. He opened that can of worms by insisting on psych evaluations in divorce court lol