Info before reading the book

Annabeth feels left out and lonely, ever since the fall into Tartarus she has changed dramatically but it doesn't stop her from loving her friends. When Percy goes on a quest alone, specifically asked by Hecate he comes back changed, he is more rebellious and he seems to ignore her more. Annabeth clings to him as the last string when all her friends betray her. On a walk to the beach she sees him and her...