Graham is not suffering the same sadness as Malachi with this bedroom changing-around. He said earlier, "This is the most fun day EVER!"
Just now, as the boys watched Stuart Little, he said to Malachi, "That was a so short party, huh?" And I realized, there IS a party on that movie that is so tiny, and how funny that he recognized that! He's got Alif's powers of observation when it comes to movies, I guess.