Billy Giles is a boxer who boxes for his wife's happiness. He boxes to gain cash to use to make his wife even though she doesn't want him to fight anymore. It is revealed that Billy hasn't finished high school.
Billy Giles is the lead character in "The Fighter." He lies to his wife that he's going to the gym instead of where he really is going,the boxing ring. There he fights Danny Vegas and severly loses feeling sore, nausea, and bleeding.
He gains the money after losing and gives it to her wife who figures out about his forbidden boxing. She accepts the money he had to endure for and cleans him up. She falls asleep with him and gives Billy Giles the feeling of closeness, the feeling he would want to stay awake for.