Gatsby ends his huge parties because Daisy doesn't like them. Tom and Jordan drive with Nick to New York in Gatsby's car, while Daisy and Gatsby drive together in a different car. Nick is turning thirty. Gatsby is hiding in the bushes at Tom's house to make sure Daisy is okay after the accident. Daisy was driving the car at the time of the accident, but Gatsby will take the blame.
The argument between Tom and Gatsby erupts after Tom realizes that Daisy and Gatsby are having an affair. It is a pivotal moment in the novel. The two men are competing for who will get Daisy. Gatsby wants her to leave Tom and start a new life with him. Tom wants to hold on to his wife and keep life as it is. The intense heat of the summer day which permeates their room at the Plaza Hotel in the time before central air conditioning reflects the heat of the moment as the two men face off, with Daisy, Nick, and Jordan in attendance.
Tom wins. We learn he is the more ruthless of the two men. He and Daisy also have the stronger relationship, one that has lasted for five years. Despite his desires, Gatsby is not able to turn back the clock and start over with Daisy as if those five years never happened. Gatsby, the self-made dreamer, cannot win against the ruthless Tom and his inherited wealth and status.