"You told me! I told you!"
Brick forcefully closes his dialogue with Daddy in Act II with this seemingly gratuitous sentence. He has just told Daddy of his cancer in return for the revelation of the homosexual desire in his relationship with Skipper.
Throughout the play, Brick and Big Daddy appear to be in a narcissistic relationship with each other. Here father and son figure as doubles in their roles as revealer and recipient of the other's "inadmissible thing." Brick stages a reversal, turned things "upside down": now Daddy stands in the place he just occupied. It is a violent act, robbing Daddy of his second life. Brick's exit marks the reverse side of the narcissistic love between them, the aggressive logic of "either you go or I go" between those who mirror each other too closely.