Cass hated seeing Percy ill, but he was glad he was at least admitting to not being well. Nodding at the words, he knew how Percy felt. He'd felt it only a couple of days ago after all.
'It will get better,' he said firmly. Because it had to get better. He wasn't opening up for the possibility that it might get worse again.
'And I've told you I'm not leaving you alone here. As long as you need to be here, so will I be.' If that meant faking pain for the medi-witches then so be it. He didn't care. He wasn't leaving Percy there alone. When Percy was free to go home, then he would, but not a day sooner than that.