Avatar: The Last Airbender, Book 3: Fire

Hakoda:
What's wrong, Katara?

Katara:
He left!

Hakoda:
What?

Katara:
Aang! He just took his glider and disappeared. He has this ridiculous notion that he has to save the world alone, that it's all his responsibility!

Hakoda:
Maybe that's his way of being brave.

Katara:
(yelling) It's not brave, it's selfish and stupid! We could be helping him, and I know the world needs him but doesn't he know how much that we need him too? How could he just leave us behind?!

Hakoda:
You're talking about me too, aren't you?

Katara:
(sobbing) How could you leave us, Dad? I mean, I know we had Gran Gran and she loved us but...but we were just so lost without you...

Hakoda:
I'm so sorry, Katara.

Katara:
(embracing her father) I understand why you left, I really do, and I know that you had to go. So...why do I still feel this way? I'm so sad and angry...and hurt.

Hakoda:
I love you more than anything. You and your brother are my entire world. I thought about you every day I was gone, and every night, when I went to sleep, I would lie awake missing you so much it would ache.