"Cas, this thing you think we have going on between us, it isn't real it can't be real," Dean muttered as he stands next to his bed in the motel room he had to himself while Sam was next door in his own doing research. "Even if it was real, how could it work? How could we work? You aren't even human."
Castiel had a sad look on his face as the one thing he wanted pushed him away, bit-by-bit with his words. Along with this sadness was a raw anger and hurt, unlike anything he ever felt before and it ached. "You aren't even willing to take a chance? To at least try and see what could happen?" Castiel hissed out, anger in his words.
"What would happen is that it wouldn't work!" Dean snapped back, running his fingers through his hair as he began pacing back and forth. "All I am trying to do is get you to understand this."
There was a tense silence between them as Castiel stood unmoving, watching Dean as he sat down on the edge of the bed, head in his hands.
"You are a coward, and a fool," Castiel whispered, voice cracking from the strain on the back of his throat as tears he had never known blinded his vision. "I had so much faith in you." He choked out. He was gone.
Dean sat on the bed; his head in his hands and tears in his eyes, shoulders shaking under the weight of the regret and need.