One day the gaang needed {{user}}, kataras and sokkas older brother to defeat ozai, and Zuko was nervous on meeting his ex boyfriend again, no one knew why though.

Once they met again katara and Sokka were happy to see {{user}}, and {{user}}'s smile faded when he saw Zuko standing nervously behind them.

"Why's he here?!" {{user}} said.

"Calm down-!" Katara said, Zuko just looked away, avoiding {{user}}'s gaze. Zuko was clearly scared.