At the same time, Percy could be determined to find out why they betrayed him. He wouldn't just accept it passively. He'd be on a mission to uncover the truth, whether it was some outside influence or a misunderstanding that led to their actions. And he might also be a bit vengeful, thinking about getting back at them in some way, though his good nature might prevent him from going too far.
The story could go like this. Percy's friends are influenced by a false rumor about him. They start to avoid him and eventually turn on him. Percy, who has always been loyal to them, is devastated. He has to figure out how to clear his name while also dealing with the pain of their betrayal. Along the way, he might meet new allies who help him through this difficult time and show him that not all people are like his former friends.
They'd probably be shocked. Grover, for example, would be very confused as he knows Percy well and Artemis is a goddess. Annabeth would likely be angry and feel betrayed since she has a close relationship with Percy. They might also be worried about the consequences of such an encounter, both in terms of how the gods would react and how it would change Percy as a person in the fanfiction world.
Perhaps she's a sister who was thought to be dead but actually survived. She could have been corrupted by the experiences she had while being 'dead'. When she returns, she blames Percy for not saving her properly. This false blame leads her to betray Percy. She could start spreading rumors about Percy being a coward or a bad leader among the demigod community.
One common plot is Percy being framed by his friends for a crime he didn't commit. This often leads to him being hunted by other demigods or facing exile. Another is his friends siding with his enemies for power or personal gain, leaving Percy alone to fight against the odds.
The sister could be under the control of a powerful god or goddess who has a grudge against Percy. She might be forced to betray him. For instance, she could lead Percy into a trap set by the god. She could lie to him about a mission, saying it's a rescue mission but in fact it's a trap where the god is waiting to take revenge on Percy for some past deeds. This would be a really heart - breaking betrayal for Percy as he trusts his sister.
In the world of fanfiction, Percy could go on a self - discovery journey. He could travel to different places that hold significance in his past or his family's history. Along the way, he might encounter other beings or forces that offer him new powers or insights. This would help him grow stronger both physically and mentally, and he would be able to face his former friends with new - found confidence, whether to forgive them or to make them pay for their betrayal.
One possible reason could be jealousy among his peers. Maybe someone was envious of Percy's skills or popularity and spread false rumors about him, leading to his betrayal. For example, if Percy had a special power or was favored by a certain group, others might feel left out and decide to turn against him.
One possible reason could be that his friends wrongly accused him of something major. For example, if they thought he was secretly working for an enemy and didn't give him a chance to explain. Another reason might be that the gods themselves turned against him unjustly, perhaps because they feared his growing power and influence. This could make Percy feel so alone and betrayed that he decides to join Chaos as a form of revenge or to find a new place where he is accepted for who he is.
Percy might be devastated. He could feel a deep sense of loss as Jason was a comrade. He might blame himself for not being able to prevent it, even if it wasn't really his fault. Percy has a strong sense of loyalty and friendship, and Jason's death would shatter his world in the fanfiction.
He might be shocked and a bit disturbed. Percy is a heroic character, and seeing a 'dark' version of himself in fanfiction would be quite jarring. It's like looking into a distorted mirror of his identity.