@Bear78: (This is from personal experience) I was married to a malignant narcissist. These are the narcissists who get vicious and purposely do cruel and vicious things to you and enjoy it. They will do anything to hurt you, and to make them look better than you and/or anyone else for that matter. He had a great job, was very successful, very wealthy, which went to his head, big time, resulting in him almost acting as he were God. He had grandiose delusions, believing himself to be better than every human on the planet -- a Mr. Know it All.
Then I dated a compensatory narcissist. He lied about everything: his job, his family, where he lived, who he knew, etc. Only after six months of dating him did I find out that he lived at home with his parents. He actually had never left his parents’ home. He was 40 years old, by the way. He didn’t have a job, and had never had a stable job. He did yard work only when he needed money. He would hang out with people who were wealthy and somehow was able to make them pay for everything, even elaborate trips.
He sponged off of me, and gave me many sob stories, so I felt bad for him. He always had a “new venture” that he was about to begin and would “make millions” from it. It never happened. Not once. He still lives at home with his parents, and still has no job. He wasn’t vicious like my ex husband. He just had a huge sense of entitlement, and was very easily hurt by any sort of criticism, or if he wasn’t the center of attention. He was compensating for being a loser, basically.