Castiel understood Sam's frustration and why he reacted harshly to his, most likely unwanted touch. He only wanted to mend what he hadn't been able to fix at the time, hoping to be forgiven. But it seemed that he would need to earn Sam's trust once more. 

Dean took a deep breath, remembering all too well what had happened for Sam to be tricked into opening the Cage to Sam tricking Lucifer to get him back in, at the cost of his brother. It still hit Dean pretty hard and how he knew no way to get Sam out, figuring there was no way to get him out without bringing Lucifer with. Dean looked to Sam as he explained it to Evie before going quiet before looking back to Cas. "You said there was a way to give Sam back his Soul. How do we do it?"

The brunette angel looked to Dean and gave a curt nod. "There's a way, but sadly I am not the one to know it. That would be Crowley. And from what I understand. He is King of Hell now. He will have the answers. It would be a matter of finding him for I could not." Castiel explained to Dean. Dean looked confused. "You think you found a way, yet you don't and that Crowley knows. How does that work, Cas?" 

"I found a way but I found it by trying to find Crowley who know for sure. Right now I have few windows to help find Crowley...." Castiel seemed to look tired and that alone made Dean worry. "What's going on Cas? What you mean you have few windows?" 

Cas looked to both brothers before his shoulders sagged. "Haven is in the middle of a Civil War. Between those who wanted the Apocalypse to happen and those want to protect Earth and God's creations." Castiel explains.