If Naruto is sick of Team 7, he could start his own solo adventures in the fanfiction. This would give him a chance to grow independently and maybe learn new skills or meet new characters. Meanwhile, Team 7 would have to figure out how to function without him, which could result in some interesting character development for Sasuke and Sakura.
Perhaps he would try to find a new team or group to work with. There could be other ninjas who share his values more closely. This would lead to a whole new set of relationships and adventures for Naruto.
He could simply stop reading it. If it's making him feel sick, there's no point in continuing to expose himself to it.
The emotional aspect of the story is also transformed. In the original Naruto, the bonds between team members were very strong and drove much of the story's emotion. In this fanfiction, Naruto's relationships with others would be more peripheral. His emotions would be more self - centered, perhaps related to his own sense of purpose rather than the shared goals with a team. And the story might explore his loneliness and how he overcomes it without the support of a traditional team.
If Naruto refuses to be on Team 7, the dynamic between Sasuke and Naruto would be completely different. Their rivalry might not develop in the same way as in the original story. Without Naruto on the team, Sasuke might not have the same motivation to become stronger, or he could become even more isolated and focused on his own goals in a different way.
The dynamic between the characters would be completely different. Without Naruto, Sasuke would lack his main rival within the team. Their growth as characters might be stunted as they wouldn't have that constant push from Naruto. Also, Sakura would be missing an important friend and source of motivation.
Well, it could make the team more protective. Sasuke might feel a stronger sense of rivalry as he wants to be the best in the team even with Naruto in this new role. Sakura would probably be very motherly, always fussing over Naruto. And Kakashi would have to adjust his teaching methods to accommodate Naruto's new situation.
If they teamed up, it would change the story significantly. Their combined strength would be a force to be reckoned with. Naruto's Rasengan and Kimimaro's bone - related jutsu could create unique and powerful attacks. Enemies that were previously difficult to defeat would now have a harder time. For example, against the Akatsuki, they could take on multiple members at once.
Naruto's story would change in many ways. For one, he would have different people to learn from. His teammates could teach him things that Sasuke or Sakura couldn't. Also, the team's goals might be different, leading Naruto to pursue different objectives.
The story might shift the focus from the traditional Team 7 dynamics to Naruto's individual journey. Instead of the group going on missions together, Naruto could be on his own adventures, facing different challenges that he wouldn't have encountered in Team 7.
Maybe he's tired of the same old dynamics. In fanfiction, sometimes the relationships in Team 7 can be written in a very repetitive way. For example, Sasuke's brooding and Sakura's one - sided love for Sasuke can become overdone, making Naruto feel sick of it all. Also, if the fanfiction focuses too much on the team's conflicts without any real development, it could be a reason.