He had lost his memories.
Percy had forgotten who he was, what he did, who his friends were. He even forgot about his parents. Percy forgot everything and everyone. Yet he remembered one person. He remembered her blonde hair, her stormy grey eyes, her loving kisses, her everything.
Percy had remembered Annabeth.
During the time he was away from Annabeth, he longed for her. He wanted to be with her, he... He needed her.
When he was at Camp Jupiter, he always thought of Annabeth whenever he could because he never wanted to forget her. He didn't want to forget her.
When they reunited, Percy couldn't believe it. Everything was going crazy lately, which was Gaea's fault. But when they kissed, it was just too real, and he was glad. He wanted to see her again.
When Annabeth said to let go of her when they were about to fall into Tartarus, Percy refused. He just got her back and he wasn't about to let go. That thought scared him, even haunted him.
He never wanted to let go of his Wise Girl ever again.
