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.
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.
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.
Well, in the realm of fanfiction, anything can be written, but it has no basis in the official Naruto storyline. Naruto is portrayed as a loyal character, and his relationship with Hinata is based on deep love and respect. So, the 'naruto cheated on hinata' in fanfiction is just a wild, unfounded idea that some fanfic writers like to explore for the sake of creating conflict in their stories.
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.
One common reaction could be Naruto's shock. In most fanfictions, Naruto is portrayed as someone who deeply loves Hinata, so being cheated on would leave him completely stunned.
In the 'naruto is cheated on by hinata fanfiction', it could be that Hinata's own insecurities play a part. She might feel that Naruto is too focused on his ninja duties and not enough on their relationship. So, she could start getting closer to someone who seems to give her more attention. This new connection could be misconstrued as cheating, when in reality she's just seeking emotional support. However, Naruto, seeing her with this other person, would think she's being unfaithful.
It can be divisive. Some fans might be really upset by such fanfiction as they love the pure relationship between Naruto and Hinata in the original. Others might find it an interesting 'what - if' scenario to explore, but overall it can cause some arguments within the fandom.