Harry was used to strange things happening, but usually he was the one quite literally pulling the strings. He was thrilled by illusions and magic, but however was playing this game had only completed half a trick. You have to change them back again. That's the full show. This was a horrible intermission.
He followed her anyway, because- she was him, and letting your own body out of sight didn't seem clever at all. Everything felt strange, and the wings kept getting in his way and pulling him back- maybe it was pretty from the outside, but on the inside it was just a total pain in the ass.
"Yeah- sorry- trying-" he told her, reminding himself that he had wings right now.