Cas stared at Dean. Had he really just asked him to go, to leave, and without any explanation? He couldn't comprehend it. Why was this happening? Why now? All the time he had left when Dean wanted him to stay so badly. Finally he was happy to stop running, to live in the bunker, be part of this small family, and he was being turned away.

Cas stood up slowly, he hadn't said anything yet, he was scared to, scared of what he might hear. Did Dean not want him? Was it because he was no longer an angel? He thought Dean liked that he was human, or did he not want to say anything in front of Sam? Why would that matter? All these questions and Cas just kept on staring, before finally asking, "Why?"

Dean sighed. Why did Ezekiel have to do this, wasn't Cas his brother after all? The bunker was safe, they could get by without Cas finding out about him. As long as everyone stuck together they would be okay. Dean looked at Cas, who hadn't stopped staring at him. He had just asked a question, and was waiting for an answer. There was desperation in his eyes, wishing for it all to be a misunderstanding, but it wasn't and Dean had to answer.

"You just can't Cas. I'm sorry, but if you stay here then we're all in trouble. And anyway, you're just discovering what it's like to be human, don't you want to go and find out more for yourself, by living?" Dean looked into Cas' eyes pleadingly. "You'll be ok Cas, you can look after yourself."

Cas was in shock, "I can't look after myself Dean, I tried, and I died. I failed, miserably. Is that what you want? Do you want me to die? Again?" He was looking ferocious now.

"Of course not Cas, but you can't stay here. I'm sorry you don't understand. And anyway, It's not like I'm gonna leave you completely, we can still speak, keep an eye out for each other. I'll tell you how to get some money so that you don't starve. Maybe you'll even find a job. You even said yourself, that the angels can't track you now, and everyone thinks that we're still looking for you, so following us will get them know where, 'cause we won't be. Don't you get it Cas, it's just the way it has to be, for all our sakes."

Castiel turned and walked away, he didn't bother asking any more questions. He was tired. Tired from running, but more so, tired from fighting. He thought Dean was his friend, the one that always believed in him, no matter what. Dean always managed to fix things eventually. Did this mean that Dean thought him a lost cause? Was there no hope for him?

He reached the door. He wanted to turn round, but knew that it would be too painful to say goodbye. So he opened the door, stepped outside, felt the breeze on his face. He had no where to go.