Having a hooker for a girlfriend
It's funny because I work as a personal trainer and a member at my old gym I trained out of recommended this movie to me because one of the characters was a personal trainer.
How in the hell could anyone be in a committed relationship with a hooker? When you take STD's into account as well as the various guys she has sex with, how could he stand it? The fact that he would sit around his apartment night after night while she screwed a variety of different men and was there waiting for her when she got home makes Chris one of the biggest "nice guy" schmucks I have ever seen in a movie.