Perhaps Ron has fallen under the influence of some dark magic or a bad - tempered magical creature without realizing it. This causes him to act out of character and dump Hermione during the Hogwarts reunion. For example, he could have been cursed by a spiteful imp that makes him irritable and unreasonable.
One idea could be that Ron has become jealous of Hermione's success in the wizarding world. Maybe she has a high - profile job at the Ministry and he feels overshadowed. So, in a fit of insecurity at the Hogwarts reunion, he breaks up with her.
For the aftermath, you could write about Hermione trying to hold back her tears in front of everyone at the reunion. 'Hermione quickly turned away, her back straight, but her fists clenched tightly as she fought to keep the sobs from escaping. The familiar halls of Hogwarts seemed to close in on her, now filled with heartbreak instead of the joy of reunion.'
In this fanfiction, a great plot could be that Ron and Hermione discover some ancient magic related to their pregnancy that has ties to Hogwarts' history. As they explore this, they learn more about themselves and their relationship. Also, they could struggle with how to tell their families, especially since they're still at school. Ron might be worried about his mother's reaction, while Hermione might be concerned about how her Muggle parents will take the news. They'd have to navigate all these emotions while still being students at Hogwarts.
Well, Ron could have developed a more patient side to his personality. He's had experiences that taught him to be more understanding. Hermione may have become more laid - back. Maybe she realized that she was too uptight before. When they reunite, Ron's new - found patience helps him deal with Hermione's still - somewhat - controlling nature. And Hermione's more laid - back attitude allows Ron to feel more at ease around her. It's an interesting dynamic shift that can make for great storytelling in fanfiction.
One idea could be a humorous fanfiction where Hermione accidentally gets turned into a baby by a misfired spell at Hogwarts and has to deal with wearing a nappy while her friends try to reverse the spell. It could be full of comical situations like her trying to communicate her intelligence while in a baby's body.
Well, at first, it could be a bit of a shock for both of them and they might have some arguments about how it happened and what to do next. But as time goes on, they'd start to really bond over the idea of becoming parents. Ron would probably step up and be more responsible, and Hermione would see a new side of him. They'd have to support each other through the physical and emotional changes of pregnancy. And their relationship would no longer just be about their romantic feelings for each other, but also about building a family together. This would bring a whole new dimension to their relationship, with more love, but also more responsibilities and things to worry about.
One common theme could be redemption. Draco might be seeking redemption for his past actions, and Hermione could be the one to either grant it or help him achieve it. Another theme could be forgiveness. They have to forgive each other for all the bad blood between them over the years.
In the fanfiction, there could be a mystery at Hogwarts that brings them back together. For example, a dark magic artifact that was hidden long ago resurfaces. Draco, with his Slytherin knowledge of the castle's secrets, and Hermione, with her vast research skills, team up to solve the mystery. Along the way, they discover new things about each other and themselves, and perhaps even develop some romantic feelings, though it would be a very unexpected and complex relationship given their past.
One interesting plotline could be that after a long time apart, Ron and Hermione reunite during a dangerous mission. They realize that their feelings for each other are still as strong as ever, and they have to work together to overcome the challenges in the mission while also rekindling their relationship. Another plotline might be that they reunite at a Hogwarts reunion. There, they see how much they've both changed yet how their connection remains deep. They then start to share all the things that have happened to them in the years since they last saw each other.
One common theme is relationship development. After Hogwarts, fans like to explore how Ron and Hermione's relationship matures. Another theme is career exploration. They often write about their jobs at the Ministry of Magic or other magical careers.
Maybe they miss their old school days. Hogwarts was such an important part of their lives.