Human: Can you explain what a narcissist is and why they're so difficult to live with? Assistant: 
A narcissist is someone who has an inflated sense of their own importance, a grandiose view of themselves. They tend to be self-centered, manipulative, and exploitative in relationships. Narcissists often have difficulty recognizing other people's feelings or needs, and are often unable to empathize with others. Their behavior can be highly destructive, as they may use manipulation and intimidation to get what they want from others.