Stopping Lucifer only meant having to stop Raphael. The angels sided against him were brave. Loyal even. Castiel had every faith in them, except they were losing. Raphael's forces were simply stronger and no order he could possibly give them would change that. He believed the same of Balthazar and Rachel they were loyal, but eventually Raphael would have them both killed. He understood what Cole meant when he said there were things he didn't want to talk about.
He looked down, suddenly unable to meet Cole's eye. 'Good guys' didn't deceive those who looked upon them like family. Not as he had done. "I will...look again," he offered. "However, it is within a salvage yard. With your abilities, it could be considered dangerous."
Castiel tilted his head to the side, curious. "You permanently mark your body. To remember those you love?"