I must to say that Dean's characterisation in this episode was odd, I thought he would be more shocked at finding out that Cas possibly pulled soulless Sam from Lucifer's cageon on purpose and lied to him about it!???? Dean was more outraged that Castiel was working with Crowley. I mean, he and Sam themselves worked with Crowley before so why is he so outraged? And Dean-Cas scenes...well. It seemed like a soap opera. Dean as the jealous hurt wife demanding an explanation and Cas the repentant, hand-in-the-cookie-jar-husband. A bit overkill from my POV. I just want my old piss off-badass Dean Winchester who is acting like a true man in every situation. Sorry, just my opinion.