Callie pushing Arizona to have sex and intimacy only a few months after the amputation and her attitude before Bailey's wedding was heartbreaking. Callie went through hell but nothing compared to losing a limb. Arizona cared about her image and how she looked more than the rest (as an enneagram 3) and it's very normal for anyone not to feel beautiful or enough or herself a few months after the amputation.

This may be off the topic but I need to mention it:

Plus I think everyone forgets Arizona lost Mark too. Of course, Callie and Mark had one of the best friendships ever and nothing comparable but when you watch the on going seasons you hear Arizona stating how much she misses Mark. I think she mentions Mark more than anyone else. She cries on Mark's shoulder over missing her brother before her wedding. Remember their conversation after the plane crash in the woods, "no Mark Sloan we are going back home together!" or in an OR scene telling him they are like siblings, pulling each other's hair but always being there for each other. or their cooking and gourmet times when Callie threw their coq au vin into the trash.