It could be because he wants to give her a special gift without her knowing. So he sneaks in to leave it on her bedside table.
He might be curious about what Annabeth's personal space is like. Percy is her friend and maybe he just wants to see her room, see what kind of things she has, like the books she reads or the little trinkets she keeps. It could be a way for him to get to know her better on a more personal level.
They might decide to sneak out just to have some alone time away from the chaos of their normal lives. In their world, there's always so much going on with training, quests, and dealing with other demigods, so they could be craving some peace and quiet together.
Sharing a dorm would expose them to each other's habits. Percy's sometimes messy ways might initially annoy Annabeth, but she'd come to accept it as part of him. And Annabeth's studious nature could inspire Percy to take his studies more seriously, which would bring them closer. They might start to have feelings that they hadn't fully realized before, like a stronger sense of protectiveness and a deeper emotional connection.
He might do it out of pure affection. Percy really cares about Annabeth, and playing with her hair could be an instinctive way to show his love.
He could be frustrated with her. Maybe they had an argument earlier, and Percy, not knowing how else to express his feelings, throws the apple as a way of getting a reaction from her. It's like a childish way of saying 'I'm mad at you' without using words.
Another reason could be that Percy wants to start a conversation about Annabeth. By showing off the fanfiction, he can get people talking about her character, her strengths, and her role in their world. This could lead to more in - depth discussions about her and also about the whole story universe they are in.
One reason could be to add a new twist to the story. By making Percy smarter, it changes the power dynamic between them and creates new plot possibilities.
Well, in the fanfiction world, it could be that Percy is on a mission. He sneaks into Annabeth's dorm to find some important item related to their next adventure. He might search through her bookshelves or drawers carefully while trying not to wake her. If she wakes up, she could be initially shocked but then understand when Percy explains the situation. And they might end up planning their next move together right there in the dorm.
Well, they might have all sorts of adventures right in their dorm. Maybe they'd study together for their mythological classes, with Percy constantly getting distracted by Annabeth's beauty. They could also have late - night talks about their past quests and how to deal with the new threats in their world.
In some fanfiction scenarios, Snape might have developed an unexpected fondness for Hermione. He sneaks into her room to check on her well - being, like an overprotective mentor, but in a more secretive and unorthodox way.
Another possibility is that there could be external forces at play. In some fanfic storylines, there might be a prophecy or a powerful enemy that convinces Annabeth that leaving Percy is the only way to protect him. She might sacrifice their relationship for his safety, believing that her presence endangers him in some way.