She might be disgusted. Gabe is such a horrible person in Percy's life. So Annabeth could show immediate anger towards Gabe just from Percy's description.
Percy could also reveal Gabe's possible illegal activities. Maybe Gabe is involved in some small - time theft or is in cahoots with some shady characters. Percy would share this with Annabeth as he trusts her and knows she can handle such information.
I'm not sure specifically as I haven't read this particular fanfiction. It could potentially be about Percy sharing some important or personal information about Gabe to the seven. Maybe it involves Percy revealing Gabe's misdeeds or some secrets related to Gabe that are relevant to the group of seven.
Well, in a 'percy is tortured by gabe fanfiction', it could be about Gabe using his position of power or some malicious means to make Percy's life miserable. Maybe Gabe is physically or psychologically torturing Percy. It could be set in the context of the original Percy - related universe, where Gabe is taking advantage of Percy's situation, like his being a demigod and having to keep it a secret. The writer might be exploring themes of power abuse, suffering, and how Percy overcomes or endures such a difficult situation.
I'm not sure specifically as there could be many different interpretations in fanfiction. It might involve a story where Percy is subjected to abuse by Gabe within the context of the fan - created narrative, perhaps exploring themes of power, survival, and the character's response to such difficult situations.
A plot might be that Percy shares with the seven that Gabe has been stealing things from demigods. This leads the seven to investigate Gabe further and they discover a whole network of illegal activities that Gabe is involved in. Or perhaps Percy tells the seven about Gabe's strange behavior around certain artifacts, which turns out to be related to an upcoming prophecy that the seven are part of.
Annabeth could be shocked at first. She might not have expected Percy to be so straightforward with his feelings. She would need a moment to process what he's said, and then she might respond in a more measured way, like asking him some questions to make sure he's serious.
Percy might be telling Jason about Gabe to warn him. Maybe there's a character in their current situation in the fanfiction who is similar to Gabe in some ways. Percy tells Jason about Gabe so that Jason can be more aware and not make the same mistakes that Percy or his mother did when dealing with Gabe. It could also be a way for Percy to relieve some of the pent - up feelings he has about Gabe and his past experiences.
In the fanfiction, Percy might tell Jason about Gabe's abusive behavior towards Sally. For example, how Gabe was always rude and made life difficult for Percy and his mother at home.
Well, Percy might be initially shocked. He could stand there for a moment, his mind racing with a million thoughts all at once. Maybe he would then break into a huge grin, excited about starting a family with Annabeth. After all, they've been through so much together, and this could be seen as a new adventure for them.