"You are helping, I'm just not help-able," he said, not even sure if the last was a word. "But you didn't have to come. I could have just read about it in the Prophet, but you came, and... thank you."
His eyes unfocused, staring at the icebox. "I tried to help, at the Burrow, but there was nothing I could do. I wasn't close to Harry like the rest of you, and..." He made a sad not-laugh at his bloody predicament. "...and now the tables are turned."
He tucked his legs up against his chest and rested his hands on his knees, then spent several moments staring at them. "You can go, if you want. I won't do anything stupid."