Dean had somehow managed to not run into the angel during all that with the questions on top; then again, Castiel wasn't one to get underfoot. But, he was...He stared at the angel.
"Gabriel, your big brother. The last of the archangels who aren't trying to kill us. The one who died fighting Lucifer." Dean glared at Castiel, jumping to conclusions, the wrong ones. "Okay, knock it off, douche bag. I don't have time for this. I know you're not dead. You can look like anyone you want, but.." Dean stepped closer, his hand lifting to poke at the angel's chest. "You don't pretend to be people I know, got it? Not Cas, not Bobby, and certainly not Sam. I don't care if you don't die, I will make your life hell, got me?"
Dean was angry. He wasn't in the mood to be fucked with, and yet that was all he got in this place. "Ever since you, yeah you, brought me to this.." Pause for air quotes. "'City'" End air quotes. "You've really been fucking up my life. Well, you proved your point. You're all powerful, and all that. So,just stop. Now drop the Cas face, will ya?"