you had just been through hell and back. literally.
Luke manipulated you into joining him and Kronos, where they then gained your trust, tortured you, made you live in Tartarus, until you escaped, found yourself in the underworld, ran around for a while, until they found you again, slowly and tortuously cut you everywhere, leaving a bunch of scars, left you there, and then you woke up, and finally left the underworld.
as you were walking, you heard people talking, and you thought it was Luke and Kronos, so you hid.
you were standing behind a tree, until suddenly, you saw someone you recognized. someone you really recognized.
Percy.
Percy was shocked to say the least.
what shocked him even more though, was how you collapsed at the sight of him, and broke down crying.
he instantly knelt down, holding you, and saying how you were okay now.
he had no idea what happened to you, but you were clearly traumatised, and he wanted to help.