I was in a relationship once with a woman who was an expert at manipulating me, and she used it on me very effectively.
Business Insider has a good article on how people do it. They call it “gaslighting” after the 1944 movie “Gaslight,” which is about a man who tricks a woman into losing her mind. That’s about what happened to me.
Whatever you call it, it sucks to be the victim of it.