They don't get their way, even if what they want is unreasonable. They feel that they've been criticized, even if the critique is constructive or said kindly. They're not the center of attention. They're caught breaking rules or not respecting boundaries.
A monumental weakness in the narcissist is the failure to look internally and flesh out what needs to be worked on. Then, of course, the next step is to spend time improving. The narcissist sabotages any possibility of looking deep within.
They talk a good game, but narcissists actually have very low self-esteem. Low self-worth/confidence/esteem is at the core of a narcissism. This low sense of self naturally makes it extremely easy for them to become jealous – very jealous.
Here are some narcissism red flags to look out for: Lacking empathy. They seem unable or unwilling to have empathy for others, and they appear to have no desire for emotional intimacy. Unrealistic sense of entitlement.
Clearly communicate your needs and set boundaries – in writing if possible. Take some quiet time by yourself to figure out what you will accept and won't accept from your narcissist. Become clear about the boundaries you need to set to shut them down.
You could ignore him, say something that publicly embarrasses him, or act indifferent. Just be aware, that attempting to punish him can backfire and make him want to retaliate. Then things could get even uglier and more emotional.
The very essence of this process is to distance yourself from a narcissistic in every possible way, which means: Tell them you're done with them with no further explanations. Cut all contacts with a narcissist & block him/her everywhere. Block common friends.
What happens when a narcissist knows you figured them out?
When a narcissist is exposed or when the narcissist knows you have figured him out, they will never admit the truth even if it is staring them in the face. A narcissist will lay several false accusations and try to make him right. They will say things you didn't utter and misinterpret all your intentions.
Although narcissists act superior, entitled and boastful, underneath their larger-than-life facade lies their greatest fear: That they are ordinary. For narcissists, attention is like oxygen. Narcissists believe only special people get attention.