AHAHAHAH. I LOVE YOUUUU. This is pretty much an echo of my reaction post, as you already KNOW.

My theory was that Sam full well remembered the cure thing, so he let Dean get turned so that Dean could get intel on the ALPHA and then turn him back. BAD SAM. BAD. You're in time out.

BUT OMG DEEEEAN WITH THE BLOOD AND THE INTENSITY AND THE...I need a moment.

<3