Sokka puts his infatuation with Zuko down to frustration and anger as he travels alongside Aang and his sister. Zuko equally believes that his desire to face Sokka is so he can dominate him. Yet, as they continue to face each other in countless battles and unsavoury meetings, something begins to brew in the enemies. (Don't be alarmed if you see this on Ao3, I'm posting it there, too. My usernames just aren't the same !!)