Supernatural has its angelology completely screwed up. Still, the "Sam and Dean Show" is one of my guiltiest pleasures on tv.
The brothers "broke up" last week, over Sammy's starting the Apocalypse at the end of last season. So last night Dean was hanging out with the laconic angel Castiel. Who disappeared for a bit. Leading to this non-sequitur (since Jerusalem figures in the current plot line not at all):
Dean: Where have you been?
Dean: How was it?