^^^^^^THIS!!

Disengage. When you keep trying to prove you are right, you are just giving him attention. You have no need to continue to speak with him. It will only keep the drama going and keep you highly focused on him which is exactly what he wants. You have nothing to prove to him, and he’s never going to admit wrong doing.

Disengage. Set that boundary. You don’t have to discuss it with him. Just know YOUR limits and hold to them.