One common theme is redemption. Aang, after hurting Zuko, often goes through a journey of self - discovery to make up for what he has done.
Another theme is friendship. Despite the harm, it shows how strong their bond can be as they work through the situation. For example, Zuko may initially be angry but eventually realizes Aang's mistake was not intentional and they reconcile.
One common theme is friendship. Since they start off as enemies, many fanfictions focus on how they build a strong bond of friendship. Another is redemption. Zuko's journey of redemption is often explored further in relation to Aang.
One common theme is the journey of self - acceptance. Both characters have to come to terms with their feelings in a world that may not be fully accepting at first. Another is the idea of redemption, especially for Zuko, as his past actions might play a role in how their relationship forms.
One common theme is miscommunication. Aang might say or do something that Toph misinterprets, leading to her getting hurt. For example, Aang could be too focused on his own Avatar duties and neglect Toph's feelings in the process.
One common theme is friendship. Since they started off as enemies, their journey to becoming friends is often explored.
One popular 'aang hurts zuko' fanfiction could be 'The Unintentional Wound'. In it, Aang's newfound power accidentally causes harm to Zuko during a training session. It shows how their relationship is strained but also how they work through it.
Redemption is a common theme. Aang standing up for Zuko often symbolizes his belief in Zuko's journey of redemption from his past as a Fire Nation prince. Another theme is friendship. It shows that their bond has grown strong enough for Aang to defend Zuko.
Often, in fanfiction, Katara can hurt Zuko's feelings by bringing up his past wrongdoings. She might do this in the heat of an argument, not realizing how much it still affects Zuko, who is trying to move past his old self. This can make Zuko feel like he'll never be fully accepted by her.
Maybe Zuko has his own goals that don't involve chasing Aang. He could be more focused on redeeming himself in other ways, like helping the Fire Nation people or learning about different cultures without the need to pursue Aang.
I'm not sure specifically as there could be many different stories within that fanfiction. It might be about Zuko and Aang's relationship, perhaps in an alternate universe or a situation not shown in the original series. It could explore their friendship, their adventures together, or even some creative scenarios that fans have come up with.
One idea could be a time - travel fanfiction. Zuko and Aang could be sent back in time to the era before the war started. They would then have to use their knowledge of the future to prevent the war from ever happening. This would involve them working together to change the minds of key people and stop the events that led to the conflict.