Being selfish is not narcissism.

Being arrogant is not narcissism.

Being vain is not narcissism.

Being mean is not narcissism.

Someone can be a complete asshole and not be a narcissist.

Narcissistic personality disorder is a real clinical diagnosis and not a flippant label for someone who isn’t nice to you the way you feel they should be nice to you.

Learn before labeling.