"I am not weird about my Father," you interrupt, eyes stiff with warning. "I love and respect him as both my parent and the Fire Lord. And he loves me. Zuko's problem is that he never figured out how to earn it. I did. "
Of course Zuko never figured out how. He probably didn't even know he had to—it's not like he had to earn anybody else's. They just gave it to him. Just like they never gave it to you.
Only your Father ever has.
(Hasn't he?)
"You don't have to earn someone's love, Azula," Mai says, somewhere between softness and resignation. Like she's saying something she wished she didn't know. "You can't."