She didn't want him to know he'd made her cry. He'd never made her cry before. She'd cried for him, or for herself, but never because of him. She'd never wanted him to feel bad for hurting her.
He'd laughed at her and here she was, still trying to be careful of his feelings! Pathetic.
She sniffled, trying to stem the tears, but they just wouldn't stop. It was impossible to hide the fact she was crying when she replied anyways, her voice thick with tears and upset. "Go away." she managed, before she buried herself back in the pillows.