Educateyourself. Find out more about the disorder. It can help you understand the narcissist's strengths and weaknesses and learn how to handle them better. ...
Create boundaries. Be clear about your boundaries. ...
Speak up for yourself. When you need something, be clear and concise.
Among the weak points of a narcissist is the pain of being told “no.” As you've already seen, the one thing they need is to constantly be the center of attention. Furthermore, they want to be respected, admired, followed, and given power over everyone else around them.
Dealing with any form of narcissist can be difficult, but when you see that the narcissist is enraged, do not continue engaging with them. Physically distance yourself from them as much as you can. Ignore them and avoid any interaction with them. Set your boundaries, remembering that they will try to manipulate you.
A narcissist may react aggressively to criticism in an effort to avoid re-experiencing the loneliness they suffered in the past. In response to criticism, a narcissist may also take great pains to devalue or invalidate the person criticizing them.
Narcissists can feel emotional pain, but not usually in the same way as others. The emotional pain they may feel is usually related to underlying selfish needs. Underneath the displays of superiority and sense of entitlement, they often feel empty, powerless, and shameful, which they perceive as weakness.
People high in narcissism are especially likely to act aggressively when they are provoked, insulted, humiliated, shamed, criticized, or threatened by others.
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.
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.
Overview. Narcissistic personality disorder is a mental health condition in which people have an unreasonably high sense of their own importance. They need and seek too much attention and want people to admire them. People with this disorder may lack the ability to understand or care about the feelings of others.