A cab pulls up outside Lydia's house. How does House know where she lives? Did Nolan tell him? That's kind of terrible. House rings the doorbell. Guess what? A child answers. Of course! Lydia doesn't just cheat on her husband - she cheats on her husband, her "best friend's" brother, and the father of her fucking children! Lydia appears and steps out on the porch to talk to House out of her son's earshot. House says he knows that she's moving to Arizona. Lydia says it's true - her husband travels to Arizona a lot for work (based on Lydia's taste in men I have to wonder if the guy has a job or just goes to Arizona to meet with his alien overlords. Who don't actually exist) and they would have moved there long ago but they were stuck in the area because of Gabby. Yeah, because it's really hard to move the completely unresponsive woman from one place to another COME ON. Anyway, now that she's totally fine again, they think it's a good idea to suddenly change her surroundings and move everything to Arizona. She doesn't want to leave House and House doesn't want her to leave him, but she's got kids. She says she didn't want to stop by Mayfield to properly say good-bye to House because things ended "kind of perfect." Except for the fact that they ended. Life is not a storybook, Lydia.
Nolan heads for his car after a long day of sucking at work and life, only to find House on the curb waiting for him. "Not the most exciting use of the overnight pass I've ever seen," he says to the clearly heartbroken guy. "She left and I'm lost," House says. But Nolan has a different way of looking at things: House is hurt because he connected enough with another person to get hurt by her and he dealt with that pain in a productive way by skulking around the parking lot waiting for the psychiatrist to show up. That means, Nolan says, that House is ready to leave Mayfield and return to his life.