After Tom Buchanan exposes Jay Gatsby as a bootlegger and ruins his chances of a future with Daisy, Tom allows Daisy to drive home with Gatsby in his Rolls Royce. Gatsby allows Daisy to drive home and she accidentally runs over Myrtle Wilson, who mistakes the driver for Tom and dashes out into the middle of the road. When Gatsby and Daisy arrive home, Gatsby hides his car and is willing to take the blame for Myrtle's death.
After Nick arrives at Tom's home, he ends his relationship with Jordan Baker and walks down the driveway to wait for a taxi. Suddenly, Gatsby comes out of the bushes and explains to Nick that he is waiting to see if Tom is going to harm Daisy. He tells Nick:
I’m just going to wait here and see if he tries to bother her about that unpleasantness this afternoon. She’s locked herself into her room and if he tries any brutality she’s going to turn the light out and on again (Fitzgerald, 154).
Nick doubts that Tom will bother Daisy at all and when he looks into the window, the couple is sitting across from each other and seem to be content. Nick even mentions that Tom and Daisy seem to be conspiring together. Gatsby displays his naivety and dedication by waiting outside of Tom's home until Daisy goes to bed and Nick leaves him alone to watch over nothing.