Well, in a fanfic, Hermione might start spending a lot of time with Sirius. Maybe they have deep conversations about magic that Ron can't really follow. For example, Sirius could be sharing some really advanced dark magic knowledge with Hermione that Ron doesn't understand. This could make Ron feel left out and jealous because he wants to be the one Hermione is so interested in. Also, Sirius is older and more experienced, which could make Ron feel inferior in Hermione's eyes.
Perhaps if Hermione and Sirius were to have a special bond over a particular spell or magical ability. Let's say Sirius was really good at a type of transfiguration that Hermione was eager to learn. They'd spend hours practicing together. Ron, who isn't as good at that spell, would feel jealous as he'd see Hermione being so close to Sirius in their shared pursuit of magic.
She might be heartbroken. Hermione is a strong - willed character, but being cheated on would surely shatter her. She could initially be in disbelief, given her trust in Ron. Then, she might become angry and start to distance herself from Ron, focusing more on her own studies or other relationships, like her friendship with Sirius.
Well, it's simple. In the fanfiction world, Ron is sometimes portrayed as jealous because Harry is the famous 'Chosen One' and Hermione is super - intelligent. When they spend time together, Ron may think they are forming a clique without him. He's also a bit insecure, and seeing Harry and Hermione's camaraderie might make him fear that he's not as integral to their group as he wants to be. So, that jealousy pops up.
Sirius could play multiple roles. Firstly, he could be a friend who listens to Hermione's rants and sorrows. Secondly, he might act as a protector, making sure Hermione doesn't do anything rash in her emotional state. And thirdly, he could be a catalyst for Hermione's growth. His presence could make Hermione realize that there are other aspects of life and relationships that she has been overlooking. His friendship could open up new opportunities for her, whether it's in terms of magical knowledge or personal development, all while she is dealing with the aftermath of Ron's cheating.
A common plot point is when Harry and Hermione share secrets that Ron doesn't know. For instance, they might be researching a powerful spell in the library and keep it from Ron, making him think they are excluding him on purpose.
One popular fanfiction with this theme is 'The Jealousy Game'. In it, Harry and Hermione start spending a lot of time together on a special project, which makes Ron feel left out and jealous. Another one could be 'Unintended Jealousy' where their innocent interactions are misinterpreted by Ron.
There could be. Fanfiction is a vast and diverse world where authors can take the characters in all kinds of directions. But it's important to note that this isn't in line with the general perception of the characters' relationships in the official books. It might be an interesting exploration for some who like to see how different twists can change the story, but others might be put off by it.
One common theme is insecurity. In many of these fanfictions, either Ron or Hermione feels insecure about their relationship, which leads to jealousy. For example, if Hermione is excelling academically and getting a lot of attention for it, Ron might feel left behind and insecure, thus becoming jealous.
The theme of growing up and maturing is also prevalent. The jealousy they experience serves as a catalyst for them to become more aware of their feelings and to learn how to handle complex emotions in a relationship. They have to grow past their jealous outbursts and learn to trust each other more deeply.