Brian's apparent interest in his new girlfriend causes Marjorie to unwittingly sabotage the relationship. Dave, who is convinced that Deena is having an affair, turns what was supposed to be a simple golf outing with the guys into a complicated stakeout to catch his wife in the act. Meanwhile, Nicole has told Deena that spouses shouldn't keep secrets from each other, but she's hiding from Angelo that she's taking fertility hormone injections.