Supernatural, Season 4

Castiel:
You can't reach him, Dean. You're outside your coverage zone.

Dean:
What're you gonna do to Sam?

Castiel:
Nothing. He's gonna do it to himself.

Dean:
What's that supposed to mean? Oh right, right. Better toe the company line. Why are you here, Cas?

Castiel:
We've been through much together, you and I; I just wanted to say I'm sorry it ended like this.

Dean:
Sorry? (Dean hits Castiel) It's Armageddon, Cas, you need a bigger word than "sorry."

Castiel:
Try to understand; this is long foretold, this is your--

Dean:
Destiny? Don't give me that "holy" crap. Destiny, God's plan... It's all a bunch of lies, you poor, stupid son of a bitch! It's just a way for your bosses to keep me and keep you in line! You know what's real? People, families - that's real. And you're gonna watch them all burn?

Castiel:
What is so worth saving?! I see nothing but pain here. I see inside you, I see your guilt, your anger, confusion. In Paradise, all is forgiven. You'll be at peace. Even with Sam.

Dean:
You can take your peace... and shove it up your lily-white ass. 'Cause I'll take the pain and the guilt. I'll even take Sam as is. It's a lot better than being some Stepford bitch in Paradise. This is simple, Cas! No more crap about being a good soldier; there is a right, and there is a wrong here, and you know it. Look at me! You know it! And you were gonna help me once, weren't you? You were gonna warn me about all this, before they dragged you back to Bible Camp. Help me, now. Please.

Castiel:
...What would you have me do?

Dean:
Get me to Sam, we can stop this before it's too late!

Castiel:
I do that, we will all be hunted! We'll all be killed!

Dean:
If there is anything worth dying for... this is it... (Castiel shakes his head) You spineless, soulless son of a bitch! What do you care about dying? You're already dead. We're done.

Castiel:
Dean.

Dean:
We're done.