Katara could be heartbroken. She might initially be in denial, not believing that Aang has actually left. Then she could become angry, feeling betrayed by Aang's sudden departure.
In some cases, the anger could be a catalyst for a more romantic development. Aang expressing his strong emotions might make Katara realize the depth of his feelings for her. Or it could be the other way around, Katara's reaction to his anger could make Aang see her in a new light, leading to a shift in their relationship dynamic towards a more romantic one.
In some fanfictions, Katara might be depicted as hurting Aang. This could be due to misunderstandings or different plot developments created by fans. However, it's important to note that these are often creative interpretations that may deviate from the original show's character dynamics.
Maybe in the fanfic, the writer wants to create a unique plot where Aang has some misunderstandings about Katara. For example, he might misinterpret her actions or words, leading to dislike.
Aang might go into a deep state of depression. He has always been an emotional character, and having his heart broken by Katara, someone he loves deeply, could send him into a downward spiral. He might isolate himself from his friends and stop practicing his bending for a while.
Their relationship often develops through shared adventures. They face many challenges together, which makes them rely on each other more and more, leading to deeper feelings.
Their relationship could deepen as they share in the joys and sorrows of rebuilding the world. They've been through a lot during the war, and now they can truly rely on each other. They might become even closer friends at first, with a mutual respect for each other's abilities growing stronger.
It could also be that Katara was being overly critical of Aang's progress in learning new skills. Aang might feel frustrated and angry if Katara is constantly pointing out his flaws instead of being more encouraging, especially if he's already trying his best.
No. Fanfiction that involves sexual content about characters is not appropriate. These are fictional characters often aimed at a wide range of audiences, including younger viewers. Such fanfiction goes against the family - friendly nature of the original works and can also be considered disrespectful to the creators' intentions.