[The only reason why this pause exists is because Katara's learned that there are some things about the future she... doesn't need to know.

But.]

It's not fair for you to carry this around by yourself. We're your friends, Aang. If you think that the others shouldn't know... all right. [For now. You may not have heard the end of this.] But if it's bothering you, if it's important, you should tell someone.