[Katara had been impressed by Aang's decision to take the lead in this, and had been willing to play back-up, but at this point she has to interject.]

I healed the man he hurt, Ikki. There weren't any defensive wounds. Think about what that means. If you still want to try to be his friend, you're going to have new rules, but we'll support your decision. It won't be a bad thing if you do and it won't be a bad thing if you don't. It will just be a choice.