Fanfiction is a realm of infinite creativity, and the idea of Harry Potter cheating in it can vary greatly. Firstly, not all fanfiction adheres to the same moral or narrative standards as the official books. Some fanficcers might be exploring darker or more complex themes and use the concept of cheating as part of character development or plot twists. For example, a fanfic might show Harry Potter in a relationship where he cheats due to the influence of a dark magic spell or because of misunderstandings in the complex wizarding society they've created in their fic. However, this is a far cry from the core Harry Potter story we know and love, which emphasizes values like loyalty and friendship.
In many fanfictions, it could be Ginny. Since they have a relationship in the original series, it would be a shock if she were to cheat on Harry. It would create a lot of drama and give the writer a chance to explore Harry's vulnerability.
The story could also explore the relationship between Harry and the person who cheated on him. Maybe there were signs all along that Harry ignored. For example, his partner being overly secretive or distant at times. By delving into these aspects, the fanfiction can become more complex and engaging.
Well, it could also be Harry who is wrongly thought to be cheating on his partner. In the fanfiction, perhaps some false rumors are spread by his enemies. They create a situation where his friends start to doubt him, and his relationship is put under great strain.
There's also a chance that Neville Longbottom could be involved in a cheating situation. He might have grown into a very different person in the fanfiction, and due to some complex emotional and social factors at Hogwarts, he cheats on his significant other. This would be quite a shock as Neville is usually seen as a very loyal character.
One popular 'Harry is cheated on' fanfiction might be 'Betrayed by Love'. In this fic, the author creates a scenario where Harry discovers his significant other has been unfaithful. It delves into his emotional turmoil and how he copes with the betrayal. Another could be 'Heartbreak in Hogwarts' which shows how the news of being cheated on spreads through the Hogwarts community and affects Harry's relationships with his friends.
To determine if an 'issei' has cheated on fanfiction, we would need to look at the specific fanfiction in question. Different fanfictions have different storylines and character developments. Maybe in some very niche or specific fanfiction, there could be a situation where an issei - like character is involved in cheating, but it's not a common or known occurrence in general fanfiction.
Well, in some fanfictions, Harry is cheated on by Hermione. Maybe she gets involved with a new wizard from a different magical school during an international magic exchange. Harry then has to deal with his feelings of jealousy and the shattering of his trust. He starts to question his own relationships and his judgment of people.
I'm not entirely sure if there is a specific 'Naruto cheated on by Kurenai' fanfiction. Fanfiction websites are full of a huge variety of stories, and it could be quite difficult to find one with such a specific plot. You could try searching on popular fanfiction platforms like FanFiction.net or Archive of Our Own using relevant keywords, but keep in mind that the Naruto fandom has a wide range of story themes, and this might be a rather unusual one.