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.
One way is if Sirius gives Hermione special gifts or tokens. In fanfic, Sirius might give Hermione a rare magical item, like a charmed quill that can write by itself. Ron, seeing this, would feel jealous as he might not be able to give Hermione such fancy things. And Hermione would be really excited about the gift, constantly showing it off or using it in front of Ron, which would fuel his jealousy.
If Hermione and Sirius start going on adventures together without Ron. In the fanfic world, they could be exploring some old wizarding ruins. Ron, who is usually part of Hermione's adventures, would feel left out. He would see Hermione having all this fun and sharing experiences with Sirius instead of him, and that would definitely make him jealous.
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.
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.
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.
In many fanfics, their relationship develops through shared hardships during the search for Horcruxes. They rely on each other more and more, which deepens their emotional connection.
It would likely make their relationship more complex. Harry might feel a bit jealous at first because he had such a strong connection with Sirius. Ron, on the other hand, might be a bit confused. But overall, they would still be her friends. They might be more protective of her, especially if there are threats related to Sirius's past enemies. And Hermione would have to balance her new identity as Sirius's daughter with her long - standing friendships.
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.
Hermione may view Sirius as someone who has been through a lot in life. He has his own share of betrayals and hardships. So, she might think that he can empathize with her situation. Also, Sirius has always been a bit of an outsider in the wizarding world, and Hermione, with her Muggle - born status, might feel a connection to that. Their relationship could be based on mutual understanding of not always fitting in perfectly, which makes her run to him when Ron cheats.
In this fanfic, the relationship between Hermione and Ron might be explored through the eyes of other characters. For instance, Harry might notice the small glances and touches between them that he hadn't paid much attention to before. It could also show how their relationship affects the group dynamic. With Hermione choosing Ron, it changes the way the trio interacts. And it could explore their future together, imagining how they would build a life as a couple in the wizarding world, dealing with things like family, career, and their place in the wizarding society.