It could also drive Reyna to focus more on her own development. Maybe she decides to prove herself even more without Percy's affection. This can lead to her taking on new challenges and growing as a character in the fanfiction. She might become more independent and self - reliant.
It can make some characters respect Reyna more. Since she is so protective of Percy, who is often seen as a hero, other characters may view her as a noble and loyal friend. For instance, those who look up to Percy would also appreciate Reyna for safeguarding him.
It can create a lot of drama. The story then might focus on Percy's attempts to win her back, which can be full of interesting challenges and character growth for him.
In a fanfiction, their friendship could start with a simple act of kindness. Percy could save Reyna from a minor accident. Reyna, being grateful, starts to see Percy in a different light. They begin to have small conversations, getting to know each other's likes and dislikes. Over time, they realize they have more in common than they thought. They support each other in their personal goals, like Percy helping Reyna with a project for the Roman camp and Reyna helping Percy with his relationships at Camp Half - Blood. This mutual support cements their friendship.
Maybe in the fanfiction, Percy and Reyna meet during a time of peace. They initially bond over their shared love for their respective camps. They decide to exchange knowledge, Percy teaching Reyna some of the more unorthodox combat techniques he learned from Poseidon, and Reyna teaching Percy about Roman military strategies. As they spend more time together, they also help each other deal with personal issues. Percy helps Reyna open up more about her feelings towards her sister, and Reyna helps Percy better understand his role as a hero in a changing world. Their friendship grows as they support and understand each other more deeply.
Jacob's rejection of his imprint can also set off a chain reaction of events. If the imprint was seen as a solution to a certain problem in the fanfiction, such as a threat to the pack or a way to bring peace between two factions, then its rejection can make that problem worse. This forces other characters to come up with alternative solutions, and new sub - plots can emerge as a result. It can also lead to unexpected alliances as characters who previously had no connection come together to deal with the consequences of the rejection.
The plot could take a completely different direction. Instead of the typical imprint - led story where Paul and Bella are drawn together, Paul's rejection might lead Bella to focus more on her relationship with Edward or explore other relationships. It can also make Paul a more complex character as he goes against the natural instinct of imprinting. This could lead to him being an outcast in the pack or having to prove himself in other ways.
It can create a lot of drama. For instance, it can lead to a rift between Harry and Ginny's friends who might be on different sides. Some friends might side with Ginny, thinking she has valid reasons for the rejection, while others might support Harry and try to get them back together.
The rejection could also lead to a shift in alliances. If Harry was hoping to have Daphne on his side for some reason, her rejection might force him to seek support elsewhere. This could introduce new characters or groups into the story as Harry tries to find alternatives. It might also cause some tension between Harry and those who are associated with Daphne, adding more conflict to the plot.
One possible plot could be that after years of adventures and growing closer as friends, Percy and Reyna start to realize they have deeper feelings for each other. They might face some initial resistance from their friends who are used to them just being comrades. But as they work together on a new mission, their bond strengthens and they finally decide to get married. The wedding could be a grand affair with all their demigod friends in attendance, celebrating their union.
One possible plot could be that Percy is being controlled by some dark force. Maybe a new evil god or an ancient curse. This force makes him kidnap Reyna because she has some important knowledge or power that the dark side wants. For example, she might know the location of a powerful weapon that could tip the balance in a coming war between the gods and the titans' remnants. Percy, against his will, takes Reyna to a secret location. Reyna, being a strong and resourceful character, tries to figure out a way to break Percy out of the control while also dealing with the situation at hand.