And then Dean belatedly thinking about circumstances a little more via Kevin and trying to apply what he'd considered in Kevin to Sam...without also extending the same grace to Kevin lololol. Out of everyone who's ever had their lives destroyed over the course of this show, I think the Trans still win the "Well, That Was the Worst" award.
And then! Both Sam and Dean jettisoning all of this because of the dire issue of Castiel acting weird--only to realize, wait, if Castiel pops off to Heaven with Samandiel's body, there's not actually a whole lot they can do. And so just watching wrestling while eating canned chili and stewing in their earlier un-resolutions together. And what says "Winchester" more than... literally all of that. XDDD