Cas felt like he had just stabbed Jo through the heart. OK, so this was going to be worse than demeaning. It was going to hurt them, each and every time he asked for them. He took the bag. "Thanks," he muttered, no longer meeting her eyes. He took them into the bathroom to ingest them. No way he was gonna hurt Joanna more by throwing back in front of her.
He took a deep breath when it was done, leaned against the wall heavily for a moment, closed his eyes. In a few minute the gnawing in his gut would pass and he could relaxed again. The sheen of sweat would dissipate and his appetite would return. He splashed some water on his face and wiped it dry. Returning to Jo he simply wrapped his arms around her, held her close, hoped she would understand without him needing to say.