I'm not sure if there is such a specific fanfic. Fanfic topics can be extremely diverse, but this particular scenario seems rather untrue to the original Naruto storyline and the relationships established in it. However, in the vast world of fanfiction, almost any idea can be explored, so it's possible that someone might have written it.
Yes, there are likely fanfictions out there with such a plot. Fanfic writers often explore different and sometimes controversial storylines. However, this goes against the strong bond between Sasuke and Naruto in the original series.
Fans would likely be divided. Some fans who like exploring unconventional and darker storylines might be interested in such a fanfic. They might see it as a creative exploration of the characters. However, many fans who are loyal to the original relationships in the Naruto series would probably be outraged. They would feel that it goes against the essence of the characters and the positive relationships that were built up over the course of the series.
In some fanfics, Hinata might be the one to bring Naruto and Sasuke closer together. Since she has a deep understanding of Naruto's heart and also respects Sasuke's strength, she could act as a mediator between the two. For instance, when Naruto and Sasuke have an argument over a strategic decision during a battle, Hinata steps in to calm them down and find a compromise.
I'm not aware of any such official fanfic. Naruto is a character known for his loyalty and love for Hinata in the original series, so this goes against the general perception of their relationship. It might be a very unorthodox or non - mainstream idea that someone might have created in a very niche fan - made story, but it's not a common or well - known concept in the Naruto fanfic world.
Naruto would probably be deeply hurt. He values his relationship with Sasuke so much that such a betrayal would shatter him. He might become withdrawn or angry.
There would be a lot of shock and disappointment among fans. Naruto and Hinata are a beloved couple, and fans who have followed their story would find it hard to accept such a plot. Many would probably criticize the author for going against the essence of the characters.
Another great one is 'Hinata's Influence'. Here, Hinata has a big impact on the relationship between Naruto and Sasuke. She helps them see each other's good sides. The fanfic shows how Hinata's presence can change the dynamic between the two boys, making their interactions more positive and leading to a stronger bond between all three of them.
One great 'Naruto Hinata Sakura Sasuke Fanfic' is 'The Bonds Beyond'. It delves into the complex relationships between these characters. It shows how Hinata's quiet strength affects the group, and how Sakura's growth as a medic-nin plays a role in their adventures. Sasuke's journey back to the village and his interactions with Naruto are also well - explored in this fanfic.
There might be some fanfics out there with such a plot, but it's not a positive or common representation of the Naruto characters. In the Naruto series, Hinata has always admired Naruto from afar and they end up together. Sasuke has his own story arc that is mainly focused on his revenge and redemption. Changing their relationships in such a way in a fanfic seems like a distortion of the original story's essence.