Katie and Schwartz celebrate a big milestone in their breakup with an extravagant dinner that quickly goes south. Scheana erupts on Lala for skipping wedding events to avoid Raquel. James must atone for his behavior when his temper gets the best of him. When Scheana and Brock throw a party to welcome all their guests to Cancun, Schwartz makes a romantic choice that jeopardizes his friendships.