Well, sometimes in these fanfictions, there's a plot where Clary gets jealous over a prophetic vision. Say, she has a vision of Jace being with another girl in the future. This makes her extremely jealous and she tries to change the future. Or it could be that a new girl arrives in the Institute and she has some special connection with Jace, like they share a rare power. Clary then gets jealous as she fears Jace might be drawn to this girl because of their shared ability.
In some fanfictions, the plot might revolve around a misunderstanding. For instance, Clary overhears Jace having a friendly conversation with a girl but misinterprets it as something more. So she gets jealous. Then she starts to distance herself from Jace. But as the story progresses, the misunderstanding gets cleared up and they end up closer than before. This kind of jealousy - based on miscommunication is quite common in Clary - gets - jealous fanfictions.
One common plot could be that Yellow sees another character getting more attention from a mutual friend or love interest. For example, if there's a group of friends and a new person joins, and that new person seems to be getting all the praise or time from their shared friend. Another plot might involve Yellow being jealous of someone's success in a particular area, like if there's a competition or task within the fanfiction world and the other character is excelling while Yellow feels left behind. It could also be about jealousy in a romantic sense, where Yellow has feelings for someone but that person is showing interest in another character.
One possible plot could be that Clary gets drunk and ends up confessing her hidden feelings to someone she has a crush on.
Well, often it's Clary, Jace, and Simon. Simon is Clary's best friend, and in some fanfictions, his relationship with Clary can make Jace a bit jealous, but at the same time, if Simon seems too friendly with another girl, Clary might also get jealous in a different way. It's an interesting triangle - like situation that can add a lot of drama to the fanfiction. And of course, Magnus Bane might also make an appearance and his flamboyant personality could somehow be involved in situations that lead to Clary's jealousy.
Well, one interesting plot could be Clary slowly regaining her memories through a series of magical encounters. Maybe she finds an old object that triggers flashes of her past. Another could be that her friends play a crucial role in helping her get her memories back, like they take her to special places related to her past. And a third possibility is that there's some sort of enemy who is trying to stop her from getting her memories back, which adds a lot of suspense to the story.
One common plot could be Clary's struggle to escape. She might use her wits and any latent powers she has. For example, she could try to find a way to communicate with her friends outside. Another plot could involve Valentine's motives for the kidnapping. Maybe he wants to use Clary to gain access to some powerful artifact or knowledge. And a third aspect could be the rescue mission. Her friends, like Jace, might risk everything to save her, leading to intense battles and emotional reunions.
The theme of future and responsibility is also often explored. Clary has to think about not only her own future but also the future of the baby. This includes things like where she'll live, how she'll raise the child, and how it will impact her goals and dreams. For example, if she was in the middle of some important mission or study, the pregnancy will force her to reevaluate all those aspects of her life.
One good plot could be Robin getting jealous of a new hero in town. This new hero is getting all the media attention and praise from the citizens. Robin starts to feel left out and unappreciated. So, he decides to take on a really difficult mission on his own to prove his worth, which leads to him getting into trouble and having to be rescued by his friends. This shows how his jealousy can lead him astray.
One common plot could be that Adrien sees Luka getting closer to Marinette. For example, at a music event where Luka is performing and Marinette is clearly impressed. Adrien might start to feel jealous as he has feelings for Marinette himself. He could then start to act out of character, perhaps being a bit more withdrawn or overly competitive when Luka is around.
One common theme is insecurity. Emmett often feels insecure when he gets jealous, doubting his own worth in the relationship. For example, in many fics, he might see someone else getting closer to the person he cares about and immediately start to question if he is good enough.
One common theme is rivalry. Goku might get jealous due to a rivalry with another character, like Vegeta. Another theme is family. His jealousy can be related to his family members, such as when he feels left out or less important.