Dean nods a little. He can tell Sam is holding back some details, but this isn't the time to push for them. It feels like Sam is telling him the big things even if he is leaving a lot of important details out. He sees that wave of exhaustion sweep over Sam, but he doesn't know what it's from. Unfortunately, Sam is right. If Ruby were human, Dean would be happy for Sam. There'd be no need for a fourth degree. "You have common ground with a demon, Sam? Just because Yellow Eyes pulled that bullshit with you doesn't mean you're anything like a demon." Sorry, but this is important to Dean. His baby brother is nothing like a demon (or what Dean believes all demons are like).

Dan sighs a little and pauses for a long moment. "One chance. For you, Sam."