Hunt finds Cristina on a bench outside, defeat and exhaustion radiating from every pore. He sits next to her but doesn't say anything, and she begins to talk about how it doesn't matter how good you are, how hard you work, or how much you research and master techniques because the patient is still going to die. Even if you fix someone today, they could go out later and get hit by a car (hmmm) or find a mole on their back, "And there's nothing you can do about it." This seems to have helped her find what she needed to say and so she turns to him and says, "I don't want you to die." He stares back but doesn't answer.
Bailey finds Swender and Callie both looking like empty husks of people in one of the lounges, and when she asks what is wrong Callie mumbles that she cut off a healthy leg and feels like a butcher even though it was for the guy's own good. Swender can't believe that her miracle case is on life support after she thought the miracle really was complete and adds that she hates this job sometimes. Callie adds a similar sentiment, so Bailey puts on her no-nonsense voice and orders them to follow her.
The two shuffle along behind Bailey, no longer giggling, and she leads them to pediatrics where Arizona is in a room hugging two happy parents while one of the cutest little boys on the planet beams from in the bed. I know I've seen this kid before somewhere but can't place it -- but damn, he could solve world peace with his precious little face, all neuroblastoma-free. Bailey tells them, "We came to see that," but Callie doesn't get it until Bailey explains, "The joy. It comes around rarely, so rarely we forget it can happen, but that. That's why we do this. The joy." Both of the other doctors smile -- a little bit sadly, but they are still smiles.