[Sokka wasn't even looking for reassurance there. He's actually okay with the fact he's not a good teacher. It's not something that's ever occurred to him as something to feel bad about. But e's starting to recognize some things in Suki that he usually only saw in himself. She's got her own stuff to prove... and it's independent of him. She had her Kyoshi Warriors long before she met him, so...]

Hey, it's alright, really. This is your thing, I'm good with that. Don't worry about me, the last thing that's going to happen around here is me getting bored, believe me.