"Of course I care!" he snapped angrily, and Parvati subsided rather confusedly. "No, obviously we deserve to feel bad, especially me, and I do!" Indeed, he'd been moody and depressed ever since Halloween, even moreso than the others, visibly blaming himself for what had happened. No one had really been able to tell him it wasn't his fault, which hadn't helped. He forged on. "But there's no point in just - like - being pointlessly sad! We should be doing something!"