he was there during siege of the North. he infiltrated the spirit oasis. he has an uncle who studies spirits and the spirit world. he watched the sky go dark then the moon suddenly reappear like everyone else in the entire world did. and most importantly he watched zhao get eaten by a giant godzilla fish spirit.

his entire life since he saw that beam of blue-white light in the south pole has been ‘this day has already been so goddamn weird’

The only really new information was that that was Sokka’s girlfriend

Important opinion in the tags that I need to have be part of the post:

Also, Iroh was there? He literally watched Sokka make out with the moon spirit. And you want to tell me that a romantic sap like him would not have immediately told Zuko about this romantic tragedy? Please, Zuko has known about this for ages, he just knows that this is not an acceptable situation in which to say “yeah, I know.”