Avatar: The Last Airbender, Book 1: Water

Katara:
You ran away.

Aang:
[looking at Katara] And then the Fire Nation attacked our temple. My people needed me, and I wasn't there to help.

Katara:
You don't know what would've...

Aang:
The world needed me, and I wasn't there to help!

Katara:
Aang?

Aang:
The fisherman was right. I did turn my back on the world.

Katara:
You're being too hard on yourself. Even if you did run away, I think it was meant to be. If you stayed, you would have been killed with all the other airbenders.

Aang:
You don't know that.

Katara:
I know it's meant to be this way. The world needs you now. You give people hope.

Katara:
Maybe there's a bright side to all of this.

Aang:
I did get to meet you!