This episode is somber. Maria feels she has "already cheated" because she had a boyfriend while Alex was deployed. Alex wants to swing to "even the score."
They match with Pete and Amy , a British couple who are extremely articulate and vanilla-looking. The contrast is funny. Pete uses words like "shall we engage in coitus?" Playboy TV--39-s Swing Season 2 Episodes 1-8
Christine calls them out. She says, "Swinging is not a weapon. It is not revenge sex. You are using strangers to fix a marriage, and that will break you." This episode is somber