After the ads, Andy's going over next steps with Susan when his phone rings. "Say, 'Hello, Grandma,'" Robert orders into his ear. He continues to give Andy step-by-step instructions for pretending to talk to his grandma while berating Andy for disobeying his initial instructions and concluding, "Undo this. Undo it." Andy hangs up without responding, explaining to Susan, "We promised we'd never say goodbye."
After having some actual (rental) exercise equipment wheeled in -- that very day, of course, because Dwight is so efficient about upgrading his space when it has to fit into an episode that takes place in a single day -- Dwight heads up to the bullpen to try to drum up business for his gym. "As if I don't have enough drama," Oscar mutters. There are no takers, so Dwight goes back to Darryl. He THs about how you build a business: "You gotta get the black people to do it to get the white people to do it. Then you gotta get the black people to stop doing it. One step at a time."
Toby's in the back doing intake paperwork with Susan when Andy announces to the bullpen that "Robert doesn't want his wife working her, so now that she is, we have to drive her away." They're surprisingly not up for being mean to her at first, except for Erin. "I know exactly which stapler to give her," she says purposefully. Susan ends up crammed up against the corner of the desk between Oscar and Kevin, the latter of whom gives a whole mean speech. Or his version of one. Jim has his own thoughts about this, which he shares in a TH: "No, I don't think we should be trying to make this place seem unpleasant. I think we should let this place just crush her spirit by itself. I mean, it knows what it's doing." Which is why the only person who's left in eight years is the boss. There's a scene in the break room where a bunch of them (except Jim) go out of their way to make her feel unwelcome, and Susan THs that she remembers hating the boss's wife too. "Of course, she was married to Robert."
Susan goes to Robert in the conference room and reports to Robert that no one seems to like her. Robert immediately jumps up and calls Andy in to fix it, then uses some lame excuse to rush out and leave Andy alone in there with Susan. Susan calls Andy out on not wanting her there, and he struggles to not tell her the truth, which tells her what she wants to know. "My husband can be a very difficult man to read, can't he?" she asks. Andy jumps on that, which totally implicates Robert. "Got it," Susan says. Oops.