narcissism

narcissism \NAHR-suh-siz-em\, noun:
excessive love or admiration for oneself; in psychoanalysis, gratification manifested in admiration and love of oneself
Dr. Marion Solomon, a Los Angeles psychologist and author of "Narcissism and Intimacy," said that true narcissists are startled when their spouses say they are miserable in the relationship.
-- Jan Hoffman, New York Times, 7/20/2008
They found that the number of "Friends" on a person's Facebook and the number of "wallposts" they have there correlated with their narcissism. That figures, Buffardi suggests, as narcissists tend to have lots of shallow relationships rather than a few solid ones.
-- Jennifer Huget, The Washington Post, 9/26/2008
by 1822, from Greek Narkissos, beautiful youth in mythology (Ovid, "Metamorphosis," iii.370) who fell in love with his own reflection in a spring and was turned to the flower narcissus.