Gaslighting, when you’re dealing with a narcissist or anyone with some mental illnesses is a form of abuse, it is intimidation, and what they’re trying to do is make you think that you’re crazy. They will purposely stage things that make you feel like you’re crazy. Might move the keys, they might tell you or not tell you about something that you’re doing and then come home and say, “Why aren’t you dressed?”
So, it’s a kind of psychological abuse that makes you think you’re crazy. And then you become more dependent on them.