It gets under our skin, insanity. When the attacks come, they start manipulative, shaming, pushing guilt, placing blame, and making you think you’re the crazy one who needs help. It only grow bigger and bigger, especially when you go along with it. Insanity, after all, is a distorted perspective of the world. If you let your crazy abusers think they are stronger than they are, their craziness will grow, along with their unfettered willingness to throw a dangerous fit when finally confronted.
The best way out is to call it out, the sooner the better. Call crazy what it is.