You were hoping your brother Percy would choose you to go on the quest with him, you two were close after all. But he didn’t.

“Annabeth.” Percy says, receiving a nod from her as he says her name. “And Grover as well. I want them with me on the quest.”

Sure, he might’ve chosen them over you because they were more skilled…but it still hurt because he chose them over you, his own sibling.