Narcissus, the physically flawless character of Greek mythology, wound up falling in love with his own reflection. It isn't a good role model, and for that reason it is an insult thrown around by amateur therapists even more often than "he has Asperberger's".
In clinical terms, narcissism comprises at least two largely distinct patterns of behavior associated with different traits: Vulnerable narcissism is marked by excessive self-absorption, introversion and over-sensitivity, while grandiose narcissism is characterized by an extroverted, self-aggrandizing, domineering and flamboyant interpersonal style.