Now it was Iroh's turn to think about this. "It depends on who you ask. To Zuko, I imagine it is simply that he wants you by his side and will do whatever he has to to give you a place there. Marrying a member of the royal family is a political act, so you would become a part of the royal family, with all the politics that involves. Some Fire Ladies have been more active in their own right, and some simply supported their husbands and children, depending on their skills and desires. And those of their husbands: most couples wanted to appear as a team in public, even if they disagreed in private."

Given Ozai had set a precedent by marrying Avatar Roku's granddaughter, marrying an actual Avatar wouldn't be a problem even fi he had no connection to any Fire Nation noble family. On the other hand, "In the nobility, it is also a way to make sure bloodlines are clearly stated."

And, unless Wan had some kind of Avatar skill to address that, that was going to be a problem if they all went back together. Perhaps not an insurmountable one, but one that Zuko would need to address.