Alone in the billiard room, Sumner tells Diane that a publisher has accepted one of her novels, which is yet unfinished, and persuades her to leave everyone and everything behind, including Sam, in order to hone her talents.
A publisher has accepted one of her novels. This is what Sumner tells Diane alone in the billiard room. Her novels is yet unfinished. Her novels persuades her to leave everyone and everything behind in order to hone her talents. This is including Sam.