Scotty had started to tell Cassidy to stop but the word never finished coming out. He didn't like when others used their powers on him. It made him feel weak because he couldn't stop it. He didn't like that he needed it, he didn't like what he was feeling in that moment and that he couldn't make the feeling go away on his own.
He started to breathe normally as the words subsided to a hum. He rested his head back against the shower and turned his head away from Cassidy. He couldn't bring himself to look at the other Outsider. Mostly because he was embarrassed. He'd never had panic attacks before.
"You didn't have to do that," he said in a quiet tone. It was his way of saying thank you but being a dick about it.