The Narcissist wants all the attention. Sometimes they appear to be passive aggressive, but even then they are seeking attention. They want all eyes on them. At times they are even jealous of their own children. DO NOT give excessive attention to the narcissists needs and demands.
Do not react to their toxic behavior. That is another way for them to become the center of the attention.
Don’t let them trap you into proving yourself. They know that you are 100% correct. They just want to watch you go crazy defending yourself.
Do not let the Narcissist make you feel that it is your fault that they are mad or upset. They are mad because you tell them the truth, and make them see how ugly and toxic their real self is.