[Dean opens his mouth to speak but closes it again with a glance to Cas.
He didn't like it when Sam turned his back on him. Made him feel like an utter douche for not sticking with him more but... truth be told. Dean had just wanted to run away back there.]
[clearing his throat] Well, you don't need to go talk to him alone. I don't know much, but I still got your back. [Sam knew that, right?]