[He smiles. Even if she's not exactly the same as the Katara who was still back home on Appa's back, he still couldn't help but have her spirits lifted by everything she said, even with the return of the friendship terminology.]

I know that now. We've already gotten through so much together back home. ...These are just really different problems than the ones I'm used to taking on with all of you. But I still do have faith in us, too.