As they drive away, Tom whimpers that Gatsby is a "god-damned coward" because he didn't even stop.
When they get back to Long Island, Nick finds Gatsby waiting outside the Buchanans' house to make sure Tom doesn't get violent with Daisy.
Gatsby reveals that Daisy was driving the car when it struck Myrtle – but he is prepared to sacrifice himself, to let everybody think that he was the one driving the car.
Observing a scene of intimacy between Tom and Daisy, Nick realizes that the couple has reconciled. When he leaves, Jay Gatsby is still watching the house, which in Nick's words is "watching over nothing."