I'm not sure specifically which 'Hermione refuses prefect' fanfictions are out there. You could try searching on fanfiction platforms like FanFiction.net or Archive of Our Own. Just type in the relevant keywords in their search bars and see what comes up.
Finding a particular 'Hermione refuses prefect' fanfiction can be a bit tricky. Maybe you could also check out some Harry Potter fanfiction forums. There, you can ask fellow fans if they know of any such stories. Sometimes, fans share their own works or recommend others in those communities.
One reason could be to explore an alternate path for Hermione's character. By having her refuse the prefect position, it shows a different side of her independence and her ability to make choices that go against the norm in the Hogwarts hierarchy.
It can be a very compelling read. The idea of Hermione and Draco as prefects in a fanfiction setting allows for a unique exploration of their characters. It can show how they might interact in a more official capacity within Hogwarts. Their different personalities, Hermione's studiousness and Draco's more haughty nature, can create interesting dynamics when they are both in positions of authority.
The novelty of their pairing. In the original series, they were on opposite sides. So seeing them in a fanfiction as prefects, sharing some sort of authority, is exciting. It's like a new adventure that the readers didn't expect from the original story.
It could be a power - hungry student who wants to undermine Hermione and Favo Prefect. This student might be jealous of their status as prefects and the respect they get from teachers and students alike. So, they try to create problems for them, like spreading false rumors or sabotaging their projects.
She might be initially confused. Hermione is a logical person, and without an obvious reason for Harry's silence, she would be at a loss. She would probably try to think back on their recent interactions to figure out what went wrong.
A third plot idea might be that there is a competition between different prefects in the school, and Hermione and Favo Prefect are partners. They have to use their combined skills in academics, magic, and leadership to win. Along the way, they have to deal with rivalries, but also form a strong bond that could potentially turn into a deeper relationship.
He could also be heartbroken. Ron might withdraw into himself, spending a lot of time alone in his room at the Burrow, not wanting to talk to anyone. He may start to doubt his self - worth, thinking that he wasn't good enough for Hermione.
One possible reason could be that in the fanfiction, Hermione has different career aspirations. She might be so focused on her magical research or her work in the Ministry that she feels marriage would hold her back. For example, she could be on the verge of a major discovery in the field of spell - modification and doesn't want any distractions.
Ron might be initially disappointed. He's always had a bit of a crush on Hermione, and this could be a blow to his ego. But if he's true to his character as we know him from the original series, he would respect her decision.
One possible reason could be a misunderstanding. Maybe Harry overheard Hermione saying something that he misinterpreted, like she was criticizing his actions but in reality she was just worried. For example, if Hermione was expressing concerns about Harry's risky adventures in a way that Harry thought was her doubting his abilities.