Perhaps she's been using a lot of magic in a short period. Magic can be draining, especially if it's powerful magic or she's using it without taking breaks. For example, if she's in a battle and has to continuously cast defensive and offensive spells, her magical energy could be depleted, leading to exhaustion and passing out.
In fanfiction, one reason could be over - studying for her classes at Hogwarts. Hermione is known for her studious nature, and she might push herself too hard, staying up all night to master difficult spells or research complex magical theories. Another reason could be her involvement in a dangerous adventure. If she's constantly on the run from dark wizards or trying to solve a mystery, the stress and lack of proper rest could cause her to pass out from exhaustion.
Anemia can also be a cause. If a girl has a low red blood cell count, her body may not be getting enough oxygen, which can lead to dizziness and passing out. Also, a sudden drop in blood pressure, perhaps due to standing up too quickly or from shock, can make a girl pass out.
Overusing his quirk is a common reason. Deku often pushes himself to the limit with One For All, and it can take a toll on his body. So in fanfiction, this could be a simple yet effective way to have him pass out.
Perhaps she wants to see how fans perceive her relationships, like with Ron or Harry. By studying fanfiction, she could gain insights into how others view her interactions and emotional bonds.
It's not common at all. However, if it happens, one possible reason could be excessive alcohol consumption leading to a complete loss of self - control and consciousness. Another reason might be some underlying health issues combined with alcohol that made her body unable to function properly.
One reason could be the simple desire to explore a different relationship dynamic. Fans might wonder 'what if' Harry and Hermione got together instead of the canon pairings. It could also be about creating a more unique or unexpected story. Some writers might be trying to add an element of shock or novelty to their fanfiction.
In some fanfictions, it might be due to a broken relationship. For example, if something goes terribly wrong between her and Ron or Harry, she could sink into a deep depression and see no way out. She may feel that she has lost the most important people in her life and can't bear the emotional pain.
One reason could be that Snape believes Hermione has knowledge that is dangerous if it falls into the wrong hands. So, he kidnaps her to keep her safe until he can figure out what to do with that knowledge. Another possibility is that he is being controlled by some dark magic or an outside force which compels him to take her against his will.
One possible reason could be jealousy. Maybe Hermione gets jealous of Harry's popularity or his special connection with other characters. Another reason might be differences in their approaches to solving problems. Harry could be more impulsive while Hermione is more methodical, leading to clashes. For example, in a situation where they need to rescue someone, Harry might want to rush in without a proper plan, but Hermione would insist on having a well - thought - out strategy first.
Well, in 'harry hates hermione fanfiction', it could be that the writer is trying to show how misunderstandings can lead to such extreme emotions. For example, perhaps there was a miscommunication about a spell or a magical event that made Harry wrongly think Hermione had betrayed him. Or it could be a way to explore how different personalities might clash more severely than shown in the original series, like Harry's impulsive nature conflicting more with Hermione's logical thinking.
One reason could be pure hatred. Bellatrix despises Muggle - borns, and Hermione being a very intelligent and powerful Muggle - born would be a prime target for her wrath. Another could be jealousy. Hermione's skills and knowledge might make Bellatrix feel inferior, leading her to lash out.