It could also be someone who has been influenced by dark forces or has a hidden agenda. They might see Hermione as an obstacle to their goals, so they betray her. For example, if there's a plot to undermine Dumbledore's side, Hermione, being a smart and loyal ally, would be a target. So they betray her to get closer to achieving their dark aims.
In many fanfictions with such a plot, it could be a so - called friend who betrays Hermione perhaps out of jealousy. Maybe they are envious of Hermione's intelligence and popularity at Hogwarts, and for some self - serving reasons, they choose to betray her.
It depends on the specific plot of the fanfiction. It could be a friend who turns against her due to jealousy, or perhaps a false ally within the so - called 'light' side who has ulterior motives.
She might become more distrustful. After being betrayed, it's natural for her to question the motives of those around her, even her closest friends.
It's popular because Hermione is a well - loved character. Seeing her in a situation where she's betrayed by everyone adds a lot of drama. It's a way to explore her character in a different light, showing her vulnerability and her ability to persevere.
Ron is a likely candidate. In the original story, they had their ups and downs, and in fanfiction, it's easy to imagine him doing something that Hermione would see as a betrayal, like not supporting her in her academic pursuits. Another could be Draco Malfoy. He could pretend to befriend her for some devious reason and then turn on her.
Hermione is smart. In the wizarding world of Hogwarts, intelligence is a great asset. She can solve complex spells and problems, which makes her a great role model for the girls. Also, her strong - willed nature is appealing. She doesn't shy away from speaking her mind and standing up for what she believes in.
Some Slytherins might oppose her. They are often traditionalists and may not like her new - fangled ideas for the school. For example, Draco Malfoy could be one of the opponents as he has had a long - standing rivalry with Hermione.
It could be that an external force, like a dark wizard in disguise, is the main antagonist. This dark wizard targets Hermione because of her potential to be a great threat to their evil plans. They use magic to cloud the minds of her friends, making them believe Hermione is up to no good. The friends, being under this spell, betray Hermione without realizing they are being manipulated. The dark wizard then watches as Hermione struggles with this betrayal, all part of their grand scheme.
Another possibility is Dumbledore. In some fan - created stories, if Dumbledore was found to be hiding crucial information about Harry's past or destiny for his own purposes, Harry would surely feel betrayed. After all, Harry had put so much trust in Dumbledore as a mentor.
In many fanfictions, a plot where Hermione is pregnant at Hogwarts can bring a whole new set of challenges and storylines. It might involve how she manages her studies while dealing with the physical and emotional changes of pregnancy. Also, it could explore how her friends, like Harry and Ron, react to this unexpected situation.
She might initially be in shock. Hermione is used to relying on her friends, so the betrayal would be a huge blow. She could then become angry and start to isolate herself. In some fanfictions, she might try to figure out why they did it on her own, using her intelligence to uncover the truth.