In some fanfictions, Hermione might leave Ron due to family pressure. The Weasley family, while loving, has its own set of traditions and expectations. If Hermione felt that she couldn't fit into that family structure or that the family was interfering too much in their relationship, she could decide to leave. Also, Hermione's own Muggle - born background might play a role. If she felt that Ron, with his pure - blood or half - blood wizard family, couldn't fully understand or accept certain aspects of her Muggle heritage and the discrimination she might face because of it, it could lead to a break - up.
Perhaps in the fanfiction, Hermione leaves Ron because of his jealousy issues. Ron has shown bouts of jealousy in the original series, and if that continued to be a problem in the fan - created story, it could be a major factor. For example, if Hermione started to gain more recognition in the wizarding community for her intelligence and contributions, and Ron couldn't handle it well. Or it could be that new characters were introduced in the fanfiction, and Hermione developed a stronger connection or friendship with them, which made her re - evaluate her relationship with Ron.
It could be due to a misunderstanding. Ron might misinterpret Hermione's relationship with Draco. He could think there's something going on between them, especially in fanfiction where the Dramione pairing is the end goal. So, in his jealousy or anger, he decides to leave Hermione while she's pregnant without really understanding the situation.
One common reason is differences in their future plans. For example, in some fanfictions, Ron might want a simple life in the wizarding world while Hermione has grander ambitions that involve Muggle - wizard relations.
One possible reason could be for adventure. Hermione is a very curious character. Maybe in the fanfiction, she has heard of some mysterious magical place outside England that she just has to explore. For example, there could be a hidden library full of ancient and powerful spells that is only accessible in a far - off land.
One reason could be that she might be on a secret mission. In some fanfictions, she could be trying to find a powerful magical artifact outside the walls of Hogwarts to save the wizarding world from a new dark threat. She might believe that she can't achieve this while staying within the school's confines.
Maybe she leaves because of a conflict. It could be with a teacher who doesn't support her unorthodox ways of learning or a fellow student who makes Hogwarts an unpleasant place for her. In fanfiction, there could be a lot of creative interpretations of such conflicts.
It could be that the fanfiction depicts Ron in a negative light that Hermione doesn't agree with. She has a complex relationship with Ron, and while they may have their differences, she doesn't like to see him misrepresented. If the fanfic makes Ron look like a fool or a jerk in a way that doesn't seem fair or true to the original character, Hermione would likely be disgusted.
Well, this concept might seem a bit out of the blue for some fans. But in fanfiction, anything can happen. Hermione leaving Ron for Charlie could be due to a growing admiration for Charlie's work with magical creatures. She might feel a deeper connection with Charlie's more solitary and dedicated nature compared to Ron's sometimes goofy and laid - back attitude.
Well, in fanfiction, anything can happen. Hermione leaving Ron for Severus might be a way for writers to show Severus in a different light. Perhaps they see Severus as someone who has been misunderstood and Hermione, being the intelligent and perceptive character she is, could be the one to recognize his true worth. But it also shakes up the core relationships we knew from the original series, which can make some fans uncomfortable.
The themes usually revolve around Hermione's emotional journey. There's often a sense of betrayal that she has to deal with. Also, the idea of finding a new purpose in life is common. Since Ron was a big part of her life, she has to redefine her goals. For instance, in many fics, she throws herself into her studies or magical activism even more. There's also the theme of forgiveness in some, whether it's Hermione forgiving Ron or vice versa.
One possible reason could be a creative plot twist by the fanfic writer. Maybe they want to explore how Harry would grow and develop on his own without Hermione's support. Another reason might be to introduce new and different story arcs that involve separation, like Hermione having to leave for a dangerous mission that she can't involve Harry in.