The Bride at every Wedding; the Corpse at every Funeral. That's Slick Willie!
"Peter-Pan Psychosis:
Many see this syndrome as a very widespread problem in modern, post-industrial society.
The Peter-Pan psychological type is one characterized by immaturity or certain sorts of psychological, social, and sexual problems. The type of male personality in question is immature and narcissistic. More completely, according to Kiley, the characteristics of a "Peter-Pan" include such attributes as irresponsibility, rebelliousness, anger, narcissism, dependency, manipulativeness, and the belief that he is beyond society's laws and norms. According to Kiley, "Peter Pan" is the adult little boy who, when in a relationship or in seeking a relationship, acts out a need for mothering."
http://en.wikipedia.org/wiki/Peter_Pan_syndrome
Interesting.
I see him as merely a more extreme example of narcissism, to be surpassed only by his bride.