Often, it starts with small incidents. For instance, Bella might get praised in front of Lauren for something she did. This makes Lauren feel inadequate. Then, as the story progresses, more and more situations arise where Bella is in the spotlight and Lauren is left out. Like at a big event in the fanfiction, Bella is the center of attention while Lauren is just a bystander.
In some cases, the author might use internal monologues of Lauren to show the development of her jealousy. We get to see her thoughts as she compares herself to Bella. For example, she might think 'Why does Bella always get all the good things? She's not that special.' And as time goes on, these thoughts turn into full - blown jealousy. The fanfiction may also show how Lauren's jealousy starts to affect her actions, like she might start to spread rumors about Bella or try to sabotage her in some way.
Often, it starts with small incidents. For example, Percy might get praised for a simple task that Annabeth thinks she could have done better. This builds up her jealousy gradually.
It could be that Bella has a love interest that Lauren also fancies. In fanfiction, love triangles are common. If the object of affection shows more interest in Bella, it would make Lauren jealous. For example, if there's a guy both of them like, and he always chooses Bella over Lauren.
The fanfiction might develop it through relationships. Say, Jason becomes closer to a group of characters that Percy wants to be part of. Percy then feels left out and his jealousy towards Jason intensifies. There could also be public events where Jason is praised and Percy is not, which is a common way to build up this jealousy plot.
Elena might show her jealousy by being overly critical of Bella. For example, she could constantly find fault in Bella's actions or decisions in the fanfiction.
The jealousy can create conflict. It might lead Hinata to act out of character, perhaps trying to compete with Sakura in ways she normally wouldn't. This can drive the plot forward as it adds a new dynamic to the relationships between the characters.
The jealousy can create a lot of drama. It might lead Ginny to confront Harry or Draco. For example, she could try to break up their new - found relationship, which would drive the plot forward as it causes conflict between the characters.
Well, he might try to distance himself from Bella at first. Maybe he'll avoid being around her and Jasper together, thinking it'll help him get over his jealousy.
The jealousy can initially strain their relationship. Percy's jealousy might make Annabeth feel smothered or like he doesn't trust her. For example, if Percy is jealous of Annabeth's friendship with a male demigod, he might act coldly towards her, causing her to be confused and a bit hurt.
Luke's jealousy can drive him to take actions that create conflict. He might try to undermine Percy's achievements or come between Percabeth. For instance, he could spread false rumors about Percy to turn others against him.
Typically, it starts with the introduction of the dystopian world. We see how different it is from our own, often with a sense of unease. Then, the main character is introduced, usually someone who starts to notice the problems in this world. Next, there's a build - up of conflict as the character tries to resist or change things. Finally, there's either a successful revolution or a tragic end where the character fails to make a difference.