there is no character named "Patty Winters" or any significant obsession with such a character in the novel "American Psycho" by Bret Easton Ellis or its film adaptation. Instead, the main character of "American Psycho" is Patrick Bateman, a wealthy, narcissistic, and psychopathic investment banker who indulges in extreme violence and sadistic tendencies.
Patrick Bateman's obsessions and fixations in the story revolve around material possessions, appearance, status, and superficial aspects of life. He is preoccupied with his image and is constantly trying to fit into the high society of New York City in the late 1980s. His obsessions include designer clothes, expensive restaurants, business cards, and aesthetic perfection.
Patrick Bateman's psychopathic nature is demonstrated through his brutal acts of violence, particularly towards women. His personality is marked by an inability to form genuine emotional connections and a lack of empathy for others. His obsession with superficial aspects of life reflects his hollow and shallow nature, as he struggles to find any true sense of identity or meaning beyond his outward appearance and material possessions.
If there is a character named "Patty Winters" or any new developments related to the storydate, I won't have information on those specific details. However, based on the original source material, there is no indication of Patrick Bateman having an obsession with a character called Patty Winters.