It could be someone new that the author creates just for the fanfiction, someone Naruto meets during a mission perhaps.
In this type of fanfiction, it might be a character that Naruto has always had a hidden connection with, like an old acquaintance from his travels. Maybe it's a girl from another village who he befriended and things took an unexpected turn. Another possibility is that it could be a character who has always had a crush on Naruto and finally managed to get his attention in a wrong way.
Well, in the 'hinata catches naruto cheating fanfiction', it really depends on how the author wants to develop the story. Maybe Hinata, after catching Naruto, decides to keep it a secret at first to figure out more about the situation. She might start observing Naruto more closely and try to find out who he is cheating with. And then, based on what she discovers, she will take different actions. For example, if it's a misunderstanding, she will feel guilty for doubting Naruto. But if it's true, she might seek advice from her friends or family on how to deal with it.
However, Naruto is also a very loyal and understanding person deep down. So after the initial shock and anger, he would probably start to investigate the situation more. He might talk to their friends like Shikamaru or Sakura to see if they know anything. He would want to get to the bottom of it rather than just making a hasty judgment.
He might feel extremely betrayed and angry. In some cases, he could cut off all ties with Hinata immediately. Naruto is a passionate character, and such a discovery would shatter his trust in her.
The story could take a dark turn. Naruto might become bitter and start to isolate himself. His friends would worry about him and try to bring him back to his old self. There could be a lot of drama and tension within the group.
I'm not sure if there is such specific fanfiction. Fanfiction can cover a wide range of wild and unexpected scenarios, but this one seems rather unethical considering the original relationships in the Naruto series. It's also not in line with the positive and loyal characters' personalities in the original work.
Well, there might be some very niche or non - canon fanfictions out there with such a plot, but it's not a common or widely - accepted idea in the Naruto fan community. Naruto and Hinata have a well - established relationship in the main series, and Neji is Hinata's cousin, which makes such a relationship in the context of cheating even more inappropriate and not in line with the general themes of the series.
Since it's a fanfiction, the idea of Hinata cheating could be a very unorthodox and out - of - character concept. It might be the result of the author wanting to create a controversial or alternative storyline. But in the official Naruto lore, Hinata is not associated with such behavior.
One common theme could be exploring relationship breakdowns. It might show how Naruto reacts to such a betrayal, which can be a way to explore his character in a new light. Another theme could be the consequences for Hinata herself, like losing friends or facing social ostracism within the Naruto world's community.
Yes, there might be some out there. Fanfiction is a vast world, and various interpretations exist. However, it goes against the canonical relationship between Hinata and Naruto. Some writers might explore such scenarios for the sake of creating drama or exploring 'what - if' situations. But in the main Naruto storyline, their relationship is based on loyalty and love.
Naruto might be initially heartbroken. He is a character who values loyalty and love deeply. So, when he discovers Hinata's cheating, he could be in a state of shock and disbelief.