How the hell is Zuko's scar supposed to be a symbol of Zuko and Katara's love?

Because, like, he totally got it saving her! I mean, I ship Zutara, but no. That's not the way it works.

Agreed on all points. I figure if Azula had to snap (and with a lack of stabilizing friends, I can accept it), it should have been a more . . . coherent madness.

YES! That is it exactly!