Most fans would probably be outraged. Harry and Ginny's relationship is a significant and positive aspect of the Harry Potter series. Fans have grown to love them as a couple, and a fanfiction with such a negative plot would seem like a betrayal of the characters they adore.
I really hope there isn't such a fanfiction. Ginny and Harry have a strong and loving relationship in the original story, and creating a fanfiction with such a negative and unfaithful plot goes against the essence of their relationship.
Well, many fans would likely be very disappointed. The original story has a certain charm and values. Ginny and Harry's relationship is based on things like love, friendship, and shared experiences. Writing them in such an improper way in fanfiction would deviate from what the fans expect and love about their relationship. It might also be seen as disrespectful to the original work by J.K. Rowling.
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.
One possible scenario could be that Ginny meets an old acquaintance who has changed a great deal and she starts to have feelings for this person while still being with Harry. Maybe they share a common interest that she feels Harry doesn't understand. However, this goes against Ginny's strong character in the original series, so it's a very different take in fanfiction.
She might start to be overly secretive about her work - related communications. For example, she quickly hides her phone when you come near while she is texting or talking. Another sign could be that she suddenly starts dressing up more often and more provocatively for work. Also, if she frequently works late without a valid reason or is always finding excuses to be alone with her boss, these could be signs.
Well, it could be that Harry has started acting really distant from Ginny. He might be canceling their dates frequently or not being as affectionate as he used to be. In the fanfiction, Ginny might also find some strange gifts or notes that she suspects are from another girl to Harry, which makes her think he's cheating.
They might be a bit surprised at first. Since they are Harry's parents, seeing how others imagine his relationship with Ginny could be strange. But they would also probably be happy to see the love and creativity in the fanfiction.
In the fanfiction world, miscommunication often plays a big role. Perhaps Harry was involved in some secret mission or task that he couldn't tell Ginny about right away. But Ginny, not knowing the real situation, might misinterpret his secrecy as cheating. For instance, he might be sneaking around to protect Ginny from a potential threat, but she doesn't see it that way.
Ginny might initially be in shock. She would likely try to fight against it. She's a strong - willed character. She could try to find a way to break the forced union, perhaps by seeking help from her friends like Harry, Hermione, and Ron. She would not just accept this situation passively as it goes against everything she believes in.
On the other hand, some fans might be interested in seeing a different and more complex side of the characters. They could view it as an exploration of what could happen if the characters were faced with different challenges and temptations. However, there would likely be a lot of debate among fans, with some firmly against it and others more open - minded.