Alternatively, Ginny could be very mature about it. She might respect Harry's decision, even though it hurts. She could choose to step back and give Harry the space he seems to need while secretly hoping that he will change his mind in the future.
One possible reason could be that Harry is too focused on his fight against Voldemort and doesn't want to put Ginny in danger. He might think that being with her would make her a target for his enemies.
In this kind of fanfiction, it could be that the author wants to explore a different dynamic. Hermione and Ron have a long - built relationship in the original series. Maybe the author feels that Ron and Hermione have a more 'grounded' connection compared to Harry and Hermione. It could also be about showing Ron's growth and how he becomes more worthy in Hermione's eyes over Harry.
One possible reason could be differences in their social status. In some fanfiction settings, Daphne might come from a pure - blood family with high - society expectations, and Harry, being an orphan with a somewhat 'outsider' status in the wizarding world, may not meet those expectations. Another reason could be conflicting personalities. Maybe Daphne is a very reserved and traditional person, while Harry is more impulsive and adventurous, which could lead to her rejection.
One possible reason could be that in the original 'Harry Potter' lore, Draco and Harry are from rival houses and have a history of animosity. So in fanfiction, Draco might reject Harry based on this pre - existing enmity. For example, Draco's pure - blood supremacist views might clash with Harry's more inclusive attitude.
Ginny might support Harry by simply being there for him. In the face of everyone else turning their backs, her presence can be a great comfort. For example, she could sit with him at meals when no one else will.
One possible reason could be miscommunication. Maybe Ginny feels neglected by Harry because he's so caught up in his own heroic deeds and doesn't pay enough attention to her. So she might seek comfort or excitement elsewhere.
Perhaps in the fanfiction, the idea of Harry rejecting magic is a form of rebellion. He might have seen the negative impacts of magic on the wizarding world, such as the power struggles and dark magic. So, he decides to take a stand against it. Another possibility is that the writer wants to show how much of Harry's identity is tied to magic and by rejecting it, he goes through a major transformation.
In the 'harry rejects draco fanfiction', it could be due to the social divide between Gryffindor and Slytherin. Harry, as a Gryffindor, has been taught to distrust Slytherins. Draco's actions towards Harry's friends, like Hermione who is a Muggle - born, also contribute. Harry may reject Draco because he stands for the discrimination that Hermione has faced from Draco and his family.