American Psycho

He doesn’t marry her because she exhibits a lot of his same character flaws when it comes to shallow materialism. She is a constant reminder of all of the things he has come to hate about his life. On top of that, Bateman is not a stable character, and marriage to anyone at all seems unlikely for him.

The business card scene is a moment where high-powered investment bankers unintentionally ridicule themselves by comparing their business cards in an over-the-top fashion. Bateman is obsessed with Paul Allen’s card because it is clearly the best card in the room. This reflects Batemans insecurities in general.