Percy hated everything right now.
He hated Mr. Brunner, he hated Grover, he hated Mrs. Dodds, he hated Grover—oh, god, he hated himself more than anything.
His stupid imagination, his stupid excuses. He didn't touch Nancy! He saw her fall back, but he didn't touch her. He swears on every life. And then Grover had to ruin it all—by saying something that wasn't even true. He didn't touch Nancy! He didn't assault her! So why did Grover say he saw him assault Nancy?
He was sat on the bench, sulking, trying to forget everything and anything around him. His bags next to him. They had called his mom's phone to tell her that Percy was kicked out. Although his dad answered. Percy doesn't know that.
He hated his dad, too. Or step-dad. He was terrible. He just hated everything in this moment. He's not sure what even happened. It just happened.
He wished someone believed him. But who would believe a twelve year old kid saying he sees monsters and mythological creatures? He has dyslexia and ADHD, of course no one will take him seriously. Of course he's going to get bullied.