Sokka was so lost in thought, pondering the almost-kiss and trying to puzzle out his feelings, that Aang's voice surprised him.
"I'm glad Suki's back."
Despite everything, Sokka smiled. "Me, too," he whispered. "But I'm sorry Appa isn't."
Aang's face closed up immediately. "Wow, I'm really tired. Goodnight, Sokka." Without letting Sokka speak, he rolled over. But his back was so rigid, his breathing so shallow, that Sokka knew he was awake.
He reached out to touch Aang's back, but drew back right away. Then, finally, he lay down himself, staring at the moon. But he had trouble falling asleep.
