Thalia's POV (bet ya didn't expect that!)
Life at camp without Percy just wasn't the same. Whilst many campers were still under the impression that Percy was guilty, Thalia, Nico and select few others remained loyal to him.
And Annabeth? Well, Thalia just didn't know what to think about her. One minute she's damming Percy to Tartarus and the next she sat on my bedroom floor crying her eyes out about it.
Although Thalia had laughed at the time, what Annabeth had told her had slowly started to sink in and she now truly believed her past words to be a lie.
Why? Because Annabeth's mom was a bitch, that's all Thalia knew and she would do anything to get her way. But as for Annabeth loving Percy? There was no doubt, in Thalia's mind, that this was a load of crap.
As much as Thalia still hated her, she knew in my heart that Annabeth would send someone she loved to Tartarus but as she thought this, she began to doubt herself.
She knew that Annabeth's fatal flaw was hubris: Deadly pride. But how far did that limit stretch? Would she betray her best friend for her own gain? Or was it just pure loathing of Percy that made her decision?
Just thinking this made her doubt her own friendship with Annabeth, but their friendship was based on something a lot deeper. They were true family.
But and she only though as a hypothesis (Annabeth was rubbing of on her), if Annabeth really did love Percy, then Thalia realized she knew nothing about her friend, former friend.
Thalia wandered down to Zeus's fist, just sit and be calm, it made her feel safe there but on her way she passed the river near to which capture the flag was played and saw something she didn't expect.
Annabeth was sat with her feet the river, holding something small in her hand, which Thalia couldn't see. A letter? No, it was a photograph and something else.
Thalia recognized the photo immediately. It was one of her and Percy on the beach at the edge of camp, laughing. She had tears in her eyes.
Thalia was startled. Was Annabeth crying over a picture of Percy? That wasn't possible, unless… Something hit Thalia hard in the chest. Not a rock, or an arrow, but a realization.
Annabeth genuinely loved Percy. And it made Thalia want to be sick, knowing that Annabeth had just casually thrown 4 years of friendship away.
Percy had given everything up for that girl and she had shrugged him off time and time again. But this was too much, she loved and she sent away.
What sort of friend would do that? Thalia thought of the answer as soon as she asked it; Annabeth. Because Annabeth had to much pride.
Now Percy was gone, that made Annabeth head of camp, now Percy was gone, Annabeth would be free and now Percy was lost to Tartarus because of her selfish choice.
How could Annabeth do that? This was the easiest of all Thalia's rhetorical questions to answer. Because she had Athena as a mother. And neither of them, would stop to get what they wanted.