Thalia might show her possessiveness by constantly trying to keep Percy to herself. For example, she could be overly protective when other characters get too close to Percy. She may insert herself into conversations or situations where Percy is involved, even when it's not really necessary.
Well, she might constantly be by Percy's side during dangerous situations, like when they are facing monsters. She could also be very cautious about who Percy interacts with, fearing they might harm him.
In the fanfiction, Percy's possessiveness might also be demonstrated by his need to be included in all of Annabeth's plans. He may feel left out or threatened if she starts making plans with other people without him. He wants to be a part of everything she does, almost like he owns a part of her time and attention.
Well, it could be shown through her getting jealous easily when other girls interact with Percy. For example, if a new girl in the story tries to talk to Percy, Annabeth might give the girl a cold stare or quickly insert herself into the conversation.
In some cases, Athena's possessiveness could be demonstrated by her attempts to shape Percy into her ideal hero. She may offer him special training or knowledge, but with the underlying intention of making him more like her vision of a perfect demigod. This could put Percy in difficult situations where he has to balance her expectations with his own desires and the needs of his friends.
One possible reason could be that she has a deep emotional bond with Percy. Maybe they've been through a lot together, and she's afraid of losing him. So she becomes possessive to ensure he stays by her side.
Well, in such fanfiction, Draco's possessiveness could show through his constantly trying to keep Harry within his sight. He may be overprotective and not want Harry to engage in any dangerous or potentially harmful activities without his presence. He might also be possessive about Harry's time, wanting Harry to spend most of it with him rather than on his own studies or Quidditch practice.
Well, in such fanfictions, Harry's possessiveness might show in him being overly protective of Draco. For example, he may not like Draco interacting with other people too much and always wants to be around Draco to ensure his safety or just to be close to him.
His possessiveness could be seen in his actions towards Sakura. He may be overly protective, like not allowing her to go on dangerous missions alone. He would always want to be the one to accompany her, ensuring her safety at all times. This shows that he doesn't want to share her with any potential threats that could come her way during a mission.
Well, in such fanfiction, Voldemort's possessiveness might show through his constant attempts to control Harry's actions. He may try to isolate Harry from his friends and allies, wanting Harry all to himself in a very dark and twisted way. For example, he could use dark magic to keep Harry in a certain place or manipulate situations so that Harry has no choice but to be near him.
By showing them having heart - to - heart conversations. For example, Percy could share his fears about his powers with Thalia, and she could offer her own experiences and advice.