Oh, this is fantastic! I loved that Gilderoy is pretending to be mental so that he doesn't have to leave the hospital. What a perfect scenario you've written here!
And transfiguring his wand into a quill. OMG, how ingenius!
I was so drawn into the story, just sucked right in. I want to know more of their story (which is always a compliment and never a demand!!), I want to spend more time in your universe, I want to just roll around in your words and soak them up and relish them for the lovely gift they are.