[Aang felt his body being drained of life as Katara pulled away. Her words were reassuring on a level, but Aang couldn't get past the fact that he was seeing Katara, even if she wasn't the Katara he remembered, for the last time. He opened his mouth, trying to say one last thing to her. But he couldn't get the words out. It took everything he had to begin stepping away. And he found different words as he did so.]

Thank you... for everything. I'm sorry I couldn't help you more.