"I'm fine," Castiel says quietly, eyes wide as he looks between the three. "I'm sorry, I didn't...I thought I'd left. I thought I'd left the way people leave for good. I was trying to find a way back."

His gaze cuts back over to Dean, grasping at his sleeve as he fights the impulse to pull him in close. He is here and as sorry as he is that he's caused problems yet again, he can't help but marvel at the miracle of them being allowed to be here, together. "I'm sorry."