I was fooled and manipulated by a narcissist several years ago and I found out they have been in a long term relationship now, are getting married and their partner brags about them incessantly over facebook.  He would even text me after he had been with her for awhile but literally leads a different life in public and has a partner now that is obsessed about him

Questions:

Has anyone had experience with this?

How can their partner brag about them so much?

Do narcissists like to have a lot of kids?

I guess I just feel like a victim of a crime who never saw justice and the perp is walking free fooling everyone