The Office S05E12 - The Duel [Commentary]
Andy walks into work disappointed. Everybody fears that he's discovered the truth about Angela's affair with Dwight, but instead, Andy says he's upset because nobody has sent their RSVPs in for the wedding. Michael is surprised Andy still doesn't know about the affair, but Jim shuts him up before he can spill the beans. While in the kitchen and away from Andy, Michael asks Dwight if he and Angela are still having intercourse. Dwight can't deny his answer. Oscar steps in and asks if they have had sex in the office. Oscar is shocked as Dwight hints around that it was on Oscar's desk. Later on, Kevin taunts Angela for not coming clean about her affair.