(Personal theory time: if Aang wants to kill Ozai, he'll most likely need the Avatar State now that the Eclipse is over, right? And he can't enter the Avatar State until he lets go of Katara. And kissing her is kind of the opposite of that, wouldn't you say?)

ILU. Srsly.

I don't care if Katara and Zuko end up single in the end, but that little tidbit is something I wish the psycho Kataang camp would realize before they get all smug and gloaty.