The common themes include growth. Naruto has to grow from this difficult situation. Resilience is also there. Despite the abandonment, he has to keep going. And the theme of finding new purpose. Since his old relationships are broken, he needs to find something else to strive for in his life.
One possible reason could be jealousy. Maybe Harry has achieved something great and his friends can't handle his success. For example, if he gets a very important role in a magical competition, his friends might feel overshadowed. Another reason could be a misunderstanding. Harry might be wrongly accused of something, like being in league with the dark side, and his friends, in their fear or haste, abandon him without giving him a chance to explain.
He would probably try to figure out what went wrong. Harry is a curious and determined character. He might start to recall recent events to see if there were any signs of his friends' discontent. He could also try to reach out to them, either directly or through mutual acquaintances, to ask for an explanation.
He might feel a great deal of pain and confusion at first. Naruto could start to question his self - worth. Maybe he tries to find out the reasons behind the abandonment on his own, becoming more independent in the process.
He could also try to find a new family or group to belong to. Maybe he befriends some outcasts in the village and forms a new kind of family with them. This new support system helps him cope by providing love and acceptance that he was denied by his own clan. He would learn that family isn't always about blood relations.
In some fanfictions, Naruto protects his friends by using his new and improved jutsu. For example, he might develop a more powerful Rasengan to fend off stronger enemies. He also uses his quick thinking and ability to sense danger, which he has honed over time. His unwavering loyalty drives him to put himself in harm's way without hesitation, always being the first to jump into a fight when his friends are threatened.
In fanfiction, Naruto jumping in front of his friends could be a heroic act. Maybe he's protecting them from an incoming attack. It shows his selfless nature, always ready to sacrifice for those he cares about.
Often, it starts with Naruto feeling extreme loneliness and confusion. He might question his self - worth. The story could then show him trying to find new meaning in his life, perhaps by focusing more on his training. He may also meet new characters who help him see that his so - called friends' abandonment was their loss.
Well, it would have a huge impact. Naruto is a character who thrives on bonds. If his team abandons him, he might become more withdrawn at first. He could start to doubt his self - worth even more than he already did in the original story. But on the other hand, it could also fuel his determination to prove himself. He might train even harder to show his former team that they were wrong to abandon him.
I'm not entirely sure as I haven't read this specific fanfiction. But generally, it might be about Naruto who is in a god - like state and is somehow abandoned because of his sister. Maybe there are conflicts within the family or some sort of power struggle related to Naruto's god - like abilities and his sister's existence.