Obsessive Compulsive Disorder in "As Good as it Gets"

"As Good As It Gets"
--Plot Summary--
Melvin Udall is a homophobic, bitter, lonely man. He spends his days in the confinement of his own apartment, writing novels. Each morning he follows a routine, from sitting in the same seat at the restaurant, to demanding Carol to be his waitress, and even scaring away those who may be sitting in his spot when he arrives. It isn't until his homosexual neighbour, Simon, is brutally beaten and hospitalized, that Melvin learns to love. As he is forced to take care of Simon's dog, Melvin grows attached to the little animal, and learns to care for someon…