One possible reason could be that she doesn't see Ron in a romantic way. In the story, perhaps she views Ron more as a brother or a close friend. Their relationship might be based on camaraderie rather than romantic love, so she refuses to marry him.
The original story focuses on the friendship and growth of Harry, Ron, and Hermione. But this fanfiction, by introducing the idea of fem Harry refusing Ron, disrupts the expected relationship patterns. It might explore different themes such as female empowerment, different interpretations of love, and how a female Harry would make different choices in terms of relationships compared to the male Harry in the original.
He could also be heartbroken. Ron might withdraw into himself, spending a lot of time alone in his room at the Burrow, not wanting to talk to anyone. He may start to doubt his self - worth, thinking that he wasn't good enough for Hermione.
One possible reason could be that in the fanfiction, Hermione has different career aspirations. She might be so focused on her magical research or her work in the Ministry that she feels marriage would hold her back. For example, she could be on the verge of a major discovery in the field of spell - modification and doesn't want any distractions.
She might be heartbroken. Ginny could initially be in shock and disbelief. She may retreat into herself, spending a lot of time alone in her room, crying and trying to understand why Harry would refuse.
Ginny could be heartbroken. She might initially be in denial, thinking that Harry will change his mind. She has loved Harry for a long time and expected a future together, so this refusal would be a huge blow to her emotions.
Ginny could be heartbroken. She might have expected to marry Harry after all they've been through together. She could initially go into a state of shock and disbelief, not understanding why Harry has refused.
One possible reason could be that Harry has seen so much death and destruction during the war that he is afraid of forming new, deep emotional bonds. He might worry that he could lose his loved ones again, so he refuses to marry as a way to protect himself from potential future heartbreak.
One possible reason could be that Harry is still haunted by his past traumas and feels he's not in the right mental state to marry anyone. His experiences with Voldemort and the losses he's endured might make him reluctant to bring Ginny into a potentially unstable future.
One possible reason could be their fundamental differences in personality. Harry is brave and impulsive at times, while Snape is often brooding and secretive. Their past interactions, which were mostly filled with animosity and mistrust, could also be a factor. Harry might not be able to see Snape in a romantic light due to all the times Snape was cruel to him in school.