Michael Scott arrives to the office with a fake mustache to hide what he thinks is a pimple over his mouth. Michael soon learns that it is a
cold sore, which is a form of
herpes. With some prodding from
Dwight Schrute, Michael decides to tell his former lovers he has herpes, despite not yet having gone to a doctor. He calls Donna first, abruptly telling her to get tested. Michael then calls
Holly Flax, joking around with her before they have a more serious discussion. Much to Michael's dismay, she claims that he over-romanticized their relationship, and he hangs up without telling her about the herpes. Michael and Dwight drive out to tell
Carol Stills,
Jan Levinson, and
Pam's mother,
Helene Beesly. Michael and Dwight meet with Jan, who is now a fairly successful office manager for a hospital and single mother. After Jan gives Michael a brutal description of why their relationship failed and he watches her play with her daughter Astrid, Michael reveals that he has herpes. He meets with Helene, Pam's mother, who is playing with Cece at a playground; after an awkward conversation in which she also points out his skewed memory, he insults her and walks off. He meets with Carol while she is conducting an open house. Carol attempts to be polite, but then abruptly points out his faults too. Finally, Michael calls Holly one last time, only to get her voicemail. He leaves her a heartfelt message that what she said hurt him and that when he saw all his other exes, he had not been happy to see any of them, but when he talked to her, he was happy. He says that he does not understand why she wants to downplay what they had, but he remembers their relationship perfectly and considers it special. Before hanging up, he awkwardly adds that she should be tested for herpes.
Andy Bernard uses the situation to host a sex education class, with the ulterior motive to learn if his former girlfriend
Erin Hannon has been having sex with her current boyfriend
Gabe Lewis. During the lesson, he disturbs the office with pictures of genitalia, cannot come up with any negatives to sex besides STD's, and attempts to use a pencil for a condom demonstration. Distraught after realizing that they are having sex and after everyone mocks him, Andy throws a tantrum, hurling a box of pizza at the wall and storming out of the conference room. Gabe takes Andy to his cubicle and admonishes him for his behavior, revealing he is aware why Andy hosted the sex ed class. He explains to Andy that the only reason he asked Erin out was because Andy gave his blessing, which Andy reveals was just a result of his difficulty saying no to how politely Gabe asked him. Gabe tells Andy that he is going to let this whole situation slide this time and advises Andy to put Erin behind him. Andy is cheered up when he receives a generic pep talk from
Darryl Philbin, despite Darryl having no idea what his problem is. ==Production==