Oh, that was too, too sweet. :) I love stories where love slowly builds and I love damaged characters finding the power within themselves to heal again, so this story is quite the rare treat. Alexander is adorable and your Viktor is very believable. Imagining a powerful, athlete like him undergoing such a horrible injury and finding the will to recover as much as is possible presents us with just such a proud and humbled man.
I've read many George fics since DH was published, but I like the tack you took here in giving him a problem to solve, one that touches him personally and allows him to work past his losses. Including everyone in his family, even the extended family, was a nice touch and it was good to see a coming-out scene where not everyone instantly understands and is supportive. More realistic, despite what one might wish for the world in general.
I thoroughly enjoyed this and you did a bang-up job. Brava!