There are various reasons in fanfiction for Hermione to be jealous of Harry's girlfriend. One reason could be that she's jealous of the easy, romantic relationship Harry has with his girlfriend, while her own love life might be a mess. Also, she might be afraid that the girlfriend will come between their friendship. The fanfiction could show her acting out in small ways, like being a bit snippy with Harry or trying to find flaws in his girlfriend.
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.
Hermione is also highly respected by the teachers and other authority figures. She's often given important tasks and responsibilities. Tonks, on the other hand, might feel that she doesn't get the same level of recognition. So, in the world of fanfiction, this could be a reason for her jealousy towards Hermione.
One way to develop this in a fanfiction could be to show Hermione's inner thoughts. She's always been a top student, so seeing Harry get good grades might make her question her own intelligence. For example, she could start comparing their study methods. Harry might have a more intuitive approach while she's all about strict study schedules. This could lead to her feeling jealous and trying to outdo Harry in a friendly competition, which would add an interesting dynamic to the story.
Harry might be really confused at first. He doesn't understand why Hermione is acting so strange. He might try to talk to her about it, but if Hermione is being stubborn, he could get frustrated. He could also be a bit oblivious and just think Hermione is being overprotective as a friend.
Hermione would likely be very organized. She'd have a schedule for cleaning and use specific spells for different tasks. Harry might be more haphazard but still try to do a good job because of Hermione's influence.
One way could be to focus on Hermione's insecurities. Maybe she notices Harry and Luna having deep conversations about the afterlife or strange magical creatures that she doesn't fully understand. She starts to feel left out and her jealousy builds as she sees them growing closer in a way that she's not a part of. For example, if Harry and Luna start going on little adventures to study some rare magical phenomenon without her, she might start to resent their new - found bond.
A favorite scene in such fanfiction could be when Hermione finally confronts Harry about his actions that made her jealous. There's a lot of tension in the air as she tries to hold back her emotions but fails. Harry is left stunned and realizes how much he means to Hermione.
Yes, there are quite a few. You can start by looking on fanfiction.net. There are many talented writers who explore this relationship in their stories. Some focus on how their relationship might have developed during their Hogwarts years, adding in more romantic sub - plots to the main story line.
Well, it could be that in fanfiction, Percy is depicted as having skills or qualities that Harry lacks. For example, Percy might be really good at academic magic, which Harry struggles with at times. Also, Percy may have a more stable family situation compared to Harry. This disparity can lead to Harry feeling jealous. Additionally, if Percy is shown to be getting more recognition for his deeds in the fanfic, that would surely make Harry envious.
Well, it could be that in the fanfic world, Dean has certain skills or qualities that Harry wishes he had. Maybe Dean is really good at Quidditch all of a sudden and getting all the attention, and Harry, being used to being in the spotlight in that area, feels a bit jealous. Also, if Dean is making more friends or is more popular in the story, Harry might be jealous as he has his own insecurities.