brace yourself

If I wed your sister, it will bind me and you together for eternity, and I will spend every day of my marriage wanting you, dreaming of you, dreading the day when my last thread of honor finally snaps. Is that the future that you want for us? For your sister?

When age, gender, location was censured like profanity in the name of protecting kids?

But suddenly the Only Way to keep children safe online is to make sure that they have 0 privacy?

there's something so incredibly distressing about the one true home and family you've ever had doubting your loyalties, especially knowing that you were given the opportunity to desert. her insistence that luke could be redeemed seemed like proof enough that she was his spy/on the side of the titans, though it really did serve to drive her into her vehement planning and strategizing, even in botl with the labyrinth. she wants the titans to lose, but most importantly for luke himself to come to the realization that the titans are not a better option, to usher in the redemption she believes him capable of despite the general sentiment that he has completely given himself over. it's this faith in him that led to camp's distrust in her, but in the end was ironically necessary when percy handed over the knife. it's defo is talked about a lot, but the isolation at the most and slight distrust at the least annabeth might have felt during the year leading up to the battle of manhattan is devastating, especially paired up with the feelings of guilt that stem both externally and internally:

hermes blaming her for not helping luke by way of running away with him definitely does put in her a state of mental distress, enough so that she sobs at the foot of athena's throne. percy—while not necessarily doubting her and is initially adamant that she did nothing wrong during their confrontation with hermes—does uncomfortably ask for confirmation that she didn't do anything. being explicitly blamed for luke's fate by hermes, and the lack of trust her friends have towards her, definitely does exacerbate the guilt she already does feel

she explicitly vocalizes her guilt to percy during the achilles' heel scene. it's a rare instance of them actually communicating when she tells him about luke asking her to run away with him and the guilt she feels given she genuinely believes she could've stopped him. annabeth may believe that the choice she was foretold to make was the decision to turn away luke, and that this choice led to the entire war. she likely feels as guilty over it as percy. percy himself is in a state of distress/confusion as he tries to make sense of when she's telling him with janus and pan's warnings as well as hestia's vision while also dealing with the fact that she may very well die from the poisoned knife. he doesn't say anything after she claims "the war is my fault"—which is not to say he agrees or should be condemned for not refuting, because he very much is in a state of stress—but this probably did very little in assuaging her of her guilt, maybe heightening it instead.

this guilt likely didn't go away (shouldn't have gone away in hoo...) especially given the cursed blade used to reap luke's soul, and the one she continued to use, is hers. forever associated with the luke who gave her it, protector, brother, hero vs the luke who died from it, betrayer, manipulator, still a hero but with too many messy, blurred lines between the two. interesting to see how it might've grown or shifted in the aftermath of the war + the mental aspect of someone whose fatal flaw is pride believing the war took place because of a choice she made