I'm not sure which specific 'jealous reader fanfic' you're referring to. There are many fanfic platforms like Archive of Our Own (AO3), FanFiction.net etc. You can try searching for 'jealous reader' on these platforms to find relevant fanfics.
A 'chaelisa jealous fanfic' likely focuses on the relationship between Chaeyoung and Lisa in a context where jealousy plays a role. It could be about one of them being jealous of the other's popularity, or perhaps in a more romantic or friendship - centered scenario where jealousy arises due to attention from a third party. For example, if in the fanfic Lisa gets a lot of attention from a new trainee, Chaeyoung might start to feel jealous because she's used to having Lisa's full attention in their friendship.
The jealous aspect can make the relationship more intense. For instance, Naruto's jealousy can make him realize his true feelings for Hinata more quickly. He might have been oblivious before, but the green - eyed monster wakes him up. It can also lead to some cute moments, like when he tries to be extra nice to Hinata to win her back from the 'imagined rival'.
A frequent theme in 'choni jealous fanfic' is insecurities. For example, Cheryl might have insecurities about Toni's past relationships or Toni could be insecure about Cheryl's status and the attention she gets from others. Also, the theme of competition can be present. There could be a new character introduced who seems to be a potential rival for one of their affections, leading to jealousy and the need to compete for the relationship.
You can expect a lot of drama. Jealousy is a powerful emotion that can drive the plot. For instance, Amu might be jealous of Ikuto's female fans. This could lead to her trying to assert herself more in their relationship.
One popular 'Draco jealous of Hermione' fanfic is 'The Green Girl' on FanFiction.net. It delves into the complex relationship between them, showing Draco's jealousy in a very believable way within the Hogwarts setting.
Astrid might also be jealous in a fanfic when she feels left out. Maybe her friends start spending more time with a new character and she starts to feel jealous of the new friendships forming. This can lead to her trying to win back their attention, creating a lot of drama and interesting storylines in the fanfic.
One common theme is possessiveness. When one character feels jealous, it often stems from a sense of possessiveness over the other. Another theme is insecurity. They might doubt their own worth in the relationship when they see someone else getting close to their partner.
Another theme is the impact on relationships. His jealousy can strain his relationships with friends or romantic partners. This can range from small misunderstandings to major rifts that need to be mended. In some fanfics, it's about how they navigate through these tough times.
One possibility in a Castle and Beckett jealous fanfic could be a new character entering the scene. For example, a famous detective from another precinct comes to help on a case. This detective might show a romantic interest in Beckett, which makes Castle jealous. He starts to act out, being overly protective and a bit more sarcastic than usual. Beckett, on the other hand, might not notice Castle's jealousy at first, thinking he's just being his normal self. But as time goes on, she realizes his feelings and it could lead to a big confrontation between them, which ultimately strengthens their relationship.