Narcissists boyfriend, husband?

Has anyone ever had a npd partner? How long into the relationship did you find out? Did you stay or did you leave? What was the situation like? What was sex like? Please share your experiences. I'm married to one (planning divorce) and would love to know other people in the same situation, how did you deal? How did you end up with him? When did you see him for who he truly was? What were your personal struggles, if you left, did life become better?

Thank you ❤