Tyus announces that Trey is Cole's son. Annie and Cole are jubilant, while AJ and Olivia react distressed and Caitlin tries to hide her upset. Caitlin confesses now that she knows Trey is his son, it'll be harder to forget he slept with her mom, especially since she - Caitlin - can no longer give him a child. Meanwhile, AJ tells Olivia he hopes this news won't hurt his chances of marrying her, while Bette reacts in concern for both Caitlin and AJ. Sean, hearing the news, slips away unnoticed. He tells Amy he has to tell Emily the truth about his sleeping with Amy. Amy tries to convince him not to. Annie gloats to Olivia that she's going to sue for Gregory's money now that Trey is no longer his son. Antonio convinces Gabi that Ricardo doesn't know about them. Ricardo meanwhile, tries to take off his wedding ring. He learns that Antonio is taking Gabi home. When he finally manages to remove the ring, he calls Gabi a slut. Meg tells Casey she's staying at Surf Central now that she realizes she and Ben have nothing left to talk about. She sets the ground rules, but it is obvious that Casey still has strong feeling for her.