It's the middle of the night when a knock sounds on Susan's door. A bleary-eyed Susan stumbles downstairs in her sweats and robe and opens the door. And it's Karl! With luggage in tow! Apparently, he and Edie are no more. Sympathetic Susan invites him in.
Cut to Karl and Susan sitting at the table with a bottle of wine. Karl apologizes for the late hour, saying that he "just couldn't face going to a motel." Susan stretches tiredly and says it's okay; Julie's at a friend's house tonight, so Karl can sleep in her room. Karl smiles and says that the sofa's fine. Susan: "So...am I allowed to ask what happened?" Karl: "You can ask, but I won't tell." Susan, smiling, asks Karl why he won't dish, and he confesses that his reason is embarrassing. And no, he did not cheat on Edie. Susan: "Did she cheat?" Karl: "No." Susan guesses again: "You finally saw her without her makeup?" Karl: "Susan!" Susan, laughing: "I'm sorry." Karl confesses that "things haven't been working for quite a while" and the breakup was "inevitable." Susan: "These days, anybody going through a breakup gets my sympathy." Karl, looking tickled, says, "That's right! I heard you made the plumber angry!" Susan: "Nooo, I made the plumber furious. That is definitely...over. So there'll be no gloating from me." They toast to no gloating. Susan says that, actually, she's trying to keep a "positive outlook on the whole thing"; in fact, she's started writing about it. She thinks it might even make a new book, and not one of her books for kids, either -- an actual adult-type book, all about Susan's many "failed relationships." Karl laughs and asks, "You're not writing about me, are you?" Susan: "You're, like, the first fourteen chapters." Karl asks if Susan's going to be fair, and she says, with a flirty little smile, "I'm going to be honest." Karl: "I was afraid of that." Hmm. I kind of like Susan and Karl together; they're very at ease...you know, when they're not screaming at each other out in the street.