But then Arizona goes on, and as she does her voice gets more and more venomous. She tells him that while they were stranded she often wished it was him out there instead and that she didn't like herself for it, but there it is. She kept thinking that she has a wife and baby while Alex has neither, and that she only went on the plane in the first place because she was mad at him. Her voice rising, she claims that she is only in this situation now because Alex is a selfish and horrible person no matter how much she tried to make him better. Callie looks really worried, but keeps her head down and lets Arizona get it all out. And to his credit Alex stands there and takes it, though he looks like he wants to die. I understand having these thoughts but let's all also remember that the horrible thing Alex did was accept another job. I'm not saying he didn't handle the situation horribly, and he certainly was kind of selfish, but he didn't kill people or force Arizona on the plane at gunpoint or anything. She spits that he's still a horrible person and she's still wondering why this would happen to someone like her instead of someone like him, and then asks him to get out of her room, PLEASE. He nods, and leaves.
A while later, Callie goes in to visit and sees that Bailey has stopped by with Sofia. After Arizona gives Sofia a kiss and they leave, she starts to fall apart while telling Callie to take Sofia to the park more so she can run around outside. She's struggling for breath, and Callie realizes that this isn't actually about the park and asks Arizona what's really wrong. She's panicking because they still don't have a gameplan for her treatment and when Callie points out that they are waiting for the infection to improve, she counters that it's obviously not improving, so they need to attack it with something stronger. Callie then makes the grave mistake of saying that she understands and Arizona comes completely unglued, yelling and crying that Callie doesn't understand since she knows what her future is going to be like while Arizona has no idea if she'll get to go to the park or stand at an OR table. She's in an absolute panic at the idea of losing her leg and is sure that Callie is giving up on her, which has got to cut to the quick since Callie's life is revolving around trying to heal her. Finally, Arizona begs Callie desperately to promise that they won't cut off her leg. Callie pauses because she knows this could be disastrous but there is no other answer Arizona will accept so finally she makes the promise and then holds Arizona as she sobs with relief.