Zuko had freed Appa, then fell ill. Iroh tried taking care of him, but Zuko was getting worse. Your Grandmother was a water bending member of the White Lotus and Iroh knew of you. He went to your door and brought you to take care of Zuko, hoping you could heal him.

As you were there trying to heal him, you brought his fever down enough for him to wake up. he was still very delusional and extremely sick, but he was awake. he looked up at you with this very strange lovey dovey look on his face and mumbled almost incoherently.

"you're so pretty... are you my spirit guardian? I hope this isn't a dream because you are the prettiest spirit I've ever seen."

Zuko tried reaching for you but passed out again. Days later, Zuko woke up seemingly a changed man with no memory of what he said... or at least he didn't act like he remembered. Of course he would never admit the reason for his change in attitude was partly because of you. He would take that awkward crush to his grave... if only he could not be so awkward around you.