Well, it might be that she's on some sort of special diet or challenge for a specific purpose. Another possibility is that she's being poisoned or affected by a curse that messes with her ability to eat.
Maybe she's got some serious health issue that affects her digestion or appetite. That could be one reason.
Maybe the character has a serious illness or allergy that affects their diet. Or it could be a part of a magical curse or punishment.
In the fanfiction's world - building, there could be a cultural or religious group in the wizarding community that Harry has become a part of, and they have a strict no - meat diet. This newfound identity or connection has led to him not being able to eat meat.
It could be a very strange and unique plot twist. Maybe there's some underlying psychological or physical issue causing this odd situation.
One reason could be that he gets tired of the constant traveling and battles. It's a very physically and mentally exhausting lifestyle. Another might be that he experiences a major loss, like losing his beloved Pokémon, which makes him lose his passion for training. Or perhaps he discovers a new interest that he finds more fulfilling than Pokémon training.
In fanfiction, it could be because of their strong emotional bond. They've been through so much together that being apart makes Annabeth feel不安. Their adventures have created a deep connection where she's used to having him around, and without him, she feels incomplete and can't relax enough to sleep.
Maybe she's injured. In many fanfics, characters can get hurt in various ways, like a fall from a horse or an accident, which could lead to her being unable to move.
It could be that she was in relationships where external factors had a big impact. For instance, financial problems in some of the marriages might have put a strain on the relationships. Or family interference could have been an issue. If her family or her partners' families were overly involved in the relationship in a negative way, it could have contributed to the divorces.
One possible reason is that Nevile doesn't have access to fanfiction. Maybe he doesn't know where to find it or he is in a place where access to such materials is restricted.
One common reason could be stress. High levels of stress can interfere with the body's natural sexual response. Another might be certain medications that have side effects on sexual function. Also, psychological factors like relationship issues or body image problems can play a role.
Fanfiction can sometimes deviate a lot from the original story. It might be that the official creators or those in charge of the Harry Potter brand don't want the characters to be misrepresented in fan - made stories, so they restrict access to it for Harry or anyone in the context of that world. Another aspect is that some fanfiction may have a negative or unethical undertone, and to protect the integrity of the original story, access is prohibited.