Hell's Half Acre

I agree with your assessment of Dean so hard. And honestly, I've thought Cas was an ass to Dean since about early Season 4 (ON THE HEAD OF A PIN cemented that theory - Really, Dean was *begging* not to go in the room with Alastair and CAS MADE HIM). It just bothers me how repeatedly Cas hurts Dean - even when Dean asks otherwise and he so rarely asks to begin with - and expects Dean's forgiveness. Dean's actually the most forgiving character on the show. Yes he gets angry, yes he gets deeply hurt, and he's HUMAN but ultimately he comes back around and I think Cas' betrayal just cut too deeply. I mean, Dean pulls rank on Cas exactly once and that was to basically tell him OPENING PURGATORY IS A FUCKING BAD IDEA. Also, I think the one thing that would make Dean cut ties is if anyone hurt Sam, and Cas pretty much did. I don't think Dean can be entirely blamed for betraying Cas - Dean's doing the best he can within his limitations... both emotional and in terms of what knowledge he has and he does give all of himself every time even when he knows it's going to gut (*points to OTHOAP*).

And sometimes there are limits and I think Dean hit his and realized that Cas is one hell of a crappy friend and that he's just DONE with being used: "But he ignored me for a year when I was the most miserable that I have ever been in life, he then only came to see me when he needed something, and then he lied to me (by omission or otherwise) repeatedly...and then he wouldn't listen when I kept trying to warn him that his ideas were bad...and what? I'm supposed to just hug him and call it water under the bridge?!!"