A Flame Surrounded By His Tears - Zukka

What if instead of being banished and going after the avatar, Zuko was left in the South Pole to die?
What if he, Sokka, and Katara grew up together?
What if the South Pole learned to accept Firebenders as their own?
What if the Gaang always had Zuko on their team?
What if Zuko and Sokka had crushes on each other since childhood?