I think my ex may seriously have NPD. To spare you the long-winded version of this tale, I'll just say that we are still in contact and his behavior has only gotten worse. It's honestly disturbing. I think the most disturbing aspect is how he views people, particularly women. They are items to be chased after and obtained. Once secured, he gets bored so he needs at least two at a time or he doesn't feel adequately fawned over. He's engaged now but even that was an oddly sterile decision - he was with two girls at the time, couldn't decide which to keep, and landed on this one because she has a stable job. And she's so ignorant that she happily threw thousands of dollars into his house that her name isn't on. She doesn't even know that she was chosen simply for her cash flow. If the other girl weren't a flake, he preferred her submissiveness and likely would have chosen her instead. Oh, and during the lead up to the engagement, he was still leading the second girl on because she fulfilled his need to be adored unquestioningly. Poor girl - quite young - was dropped like a rock without any warning.
We talked about his dating life a bit and everything he said was about checking off boxes - his words - that are based solely around his warped needs. In addition to being able to pay part of his mortgage, his fiance cooks and puts up with him and dresses the way he likes and lets him sleep around. Nothing about her intelligence or creativity or adventurous nature or anything of that sort. The only reference he's made to anything like that was actually negative. He called her "aggressive" and "jealous" and said she snoops through his phone. So he put a ring on it. Because she paid for his house.