Maybe they're tired of seeing so many different interpretations of Natsu in fanfiction that they think are inaccurate or over - the - top.
It could be that the person feels that the fanfiction has deviated too much from the original 'Fairy Tail' storyline and the true nature of Natsu. There might be a sense that the character is being misrepresented in all these fan - created works, so they feel like Natsu has 'had enough' of this misrepresentation.
They might think that the fanfiction has flooded the 'Fairy Tail' fandom to such an extent that it's overshadowing the original work. The focus on Natsu in fanfiction has become too much, and they believe it's time to move on or refocus on the official 'Fairy Tail' content rather than all the fan - made stories about Natsu.
They might say it because they think there are too many fanfictions that distort Hermione's character. For instance, if in a lot of fanfictions she's made into a weak character when she's actually very strong in the original series.
It could mean that in the 'Fairy Tail' universe, the character Natsu has reached a point where there is an excessive amount of fan - created fictional works about him that he, in a sense, has 'had enough' of. Maybe the quality or quantity of these fanfictions has become overwhelming for the perception of the character within the fandom.
She might have found that the quality of the 'Encanto' fanfiction she's been reading has declined. There could be a lot of poorly written or unoriginal stories out there, which made her decide she'd had enough.
He could leave because of a misunderstanding. Maybe he overhears something wrong and thinks the guild doesn't trust him or value him anymore. So in a fit of anger and pride, he decides to leave.
He could kidnap her because he believes she's in immediate danger. Natsu is very impulsive and might not have time to explain things properly, so he just takes her away to keep her safe.
There are several possible reasons. Maybe he's looking for more originality in his reading material. Fanfic often builds on existing universes, and Harry may be craving something completely new. Another factor could be that he's had negative experiences with certain fanfics, such as encountering offensive or poorly - written ones. After a while, these experiences could lead him to declare that he's had enough of fanfic as a whole.
Another possibility is that the kid is from an alternate dimension where time passes differently. Natsu's kid shows up in the Fairy Tail world and he has to figure out how to be a father. The story could focus on their journey to get to know each other and the kid's adjustment to this new world.
One possible reason could be a past trauma. Maybe he witnessed something really horrible during a battle or an incident at school that shocked him so much he lost his ability to speak. For example, if he saw a friend in great danger and was powerless to help immediately, it could have had such a psychological impact on him.
Well, in some fanfictions, the author might want to explore a different side of Natsu. Maybe they think it adds drama. Natsu could be written as a jerk because of some past trauma that's not shown in the original series, which makes him lash out at everyone in the fan - created story.
Well, some might be amused. Lucy would probably be both exasperated and fond, as in fanfiction Natsu could get into even wilder antics. Gray might be competitive, thinking Natsu is getting too much attention. Erza would be strict but also secretly proud of Natsu's adventures in the fan - created stories.