Percy didn't think that Cass's stupidity could grow, but it did as he tried to move, and Percy cursed under his breath. He slid closer and put a hand on Cass's shoulder. "Stop that! If you move again, I'll immobilise you. You know I'll do it without even thinking twice about it."
He took his wand out, but only to check Cass over, basic checks that his mother had done once upon a time, nothing too fancy, but if they showed anything, then he could call the Healers. When he saw nothing, he had no more excuses, no more reasons to avoid answering what Cass had said, and there was one thing that was easier to answer than the rest.
"You don't love me, Cass. You might think you do, but you don't. If you did, you would have talked to me. You wouldn't have come up with such elaborate scheme. You would have told me." Before Cass could try to move, he put his hand on Cass's shoulder again. "I'm not saying it to hurt you, but it's the truth. You must see it."
Percy snorted. "You aren't going anywhere near the office until McLaggen clears you, but that's not the point. I talk to you about everything, or at least I did. You knew more than Williamson. You knew everything, because I trusted you, and now-" He ran his fingers through his hair. "I don't know, Cass. I don't know if I can put everyone at risk. I don't know if you told Bletchley before and that's why Lestrange knew it. I don't know anything, and I can't put everyone at risk just because you say you wouldn't do it. It's not good enough."
He tried to smile, but he hated being put in this situation. He didn't like that many people, but he liked Cass, had from the start, trusted him just as quickly and maybe that had been his mistake. "You know that he could have this leaked at any time. We- we're not safe and it's just... maybe you shouldn't come back to the house, this way there might be rumours, but no one would be able to prove anything. Unless you've told anyone else."