[Her first kneejerk reaction is one of hurt. And a deeper, more resentful upset that her words are getting flung back in her face. But she glances down at her knees with a tightening of her jaw, because Katara's not done speaking past those first three words, and she curls her fingers into the pants of her jeans and is quiet for a long moment after Katara is done.]

You think I don't know that? [It's a soft reproach, deliberately mimicking Katara's from earlier. But if there was any sting meant there, it's lost in the deep unhappiness of Nami's frown.]

Nobody will ever be there for you all the time. We're all at the beck of call of this place and a bunch of jerks who think it's funny to make us fall in love at the drop of a hat. But... we all do our best to be there for each other, right? There's times...

[She breaks off, because that's a larger subject.]

Maybe I can't be. And I know you won't hold that against me, ever. But I'm here now. And as much as I can be. If I'm here, I'll never turn you away.

You do your best with what you've got, Katara.