" Yet the most powerful mechanism they have for control is toying with your emotions.
That’s why abusive narcissists and sociopaths manufacture situations of conflict out of thin air to keep you feeling off center and off balanced. That’s why they chronically engage in disagreements about irrelevant things and rage over perceived slights. That’s why they emotionally withdraw, only to re-idealize you once they start to lose control. That’s why they vacillate between their false self and their true self, so you never get a sense of psychological safety or certainty about who your partner truly is."
Bar none, the full text at that link is the best description I have ever read (and I have read TONS) of the workings of narcissists and sociopaths in relationships. In short, a relationship with a narcissist or sociopath makes no logical sense, because there is no relationship—it is all, all of it, just about them, and about them manipulating and controlling you.