Issei could react with anger. He might lash out at his partner and the person they cheated with. He could also become very confrontational, demanding explanations and apologies.
One possible plot could be that Issei discovers his partner cheating through finding love letters or messages from the other person. He then goes through a phase of heartbreak and self - doubt, questioning what he did wrong.
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.
In fanfiction where Spiderman gets cheated on, it often explores the emotional turmoil he goes through. It can be a way to add more depth to his character. Writers might show his vulnerability and how he copes with the betrayal. Maybe he throws himself more into his superhero duties to distract from the pain.
One possible outcome in this fanfiction could be Percy feeling a deep sense of betrayal. He might initially be in denial, not wanting to believe that he has been cheated on. This could lead to a downward spiral in his self - esteem as he questions what he did wrong in the relationship.
There could be many interpretations in such a fanfiction. Maybe it shows Naruto's vulnerability in relationships. It might be a way to explore his character deeper by putting him in a difficult emotional situation.
It depends on different perspectives. From a purist point of view, it's likely to be seen as inappropriate because it may distort the original intention of the source material. But for those who view fanfiction as a space for unrestricted creativity, it could be seen as an interesting exploration. However, it should be noted that if the work is shared publicly, it may receive a lot of criticism due to the sensitive nature of the topic.
I haven't actually read a specific fanfiction with this plot. However, if such a fanfiction exists, it would likely involve a lot of creativity in terms of how the relationship between Issei and Serafall developed to that point. It could explore different aspects of their personalities and how they would handle the situation of a pregnancy, which might be quite different from the original storylines of their respective characters.
Ino could be a very complex character in this fanfiction. It's possible that she cheats on Naruto because she has a fear of commitment. Naruto is a very passionate and all - in kind of person, and that might scare Ino. So, to avoid getting too deep into the relationship, she cheats. Or perhaps there's a power struggle at play. She might think that being with a different person would give her more influence or status in the ninja world. And there could be a hidden agenda that she's following, something that she can't achieve with Naruto but believes she can with someone else.