Every night, George does the same thing. He prepares for bed, and picks his nightclothes: a shirt and short that has its left side full of bright colors, with WWW logo on it moving around, and the right side is Gryffindor's colors, with a lion moving around. He glamours his face, removing any trace -for now- of scars, making him look whole, and he steps to the bathroom mirror, and is surprised, that his brother is there, wearing the same nightclothes, but inverted colors -left is Gryffindor, right is WWW-, and so, starts talking to him, and answering his own questions, too. For a moment, everything is right in George's world, but then the glamour fades, and he faces reality again, and so stops talking, his shoulder slump, and drags himself to bed.
While falling asleep, he briefly remembers Harry talking about the Mirror of Erised. For George, though, every night, his bathroom mirror is the Mirror of Erised.