Merlin: "Lancelot and Guinevere"

I love Arthurian legend, but I cannot stand the old-school Christianity and sexism intermixed with it.  The whole "you lose your kingdom cuz your wife loves another man" plot is infuriating.  It's astonishingly stupid that pretty much all of King Arthur's problems are apparently because of non-marital sex.  For people with no problem with open relationships or childless marriages or pre-marital sex, the whole Tragedy of Arthur is pretty much a farce.  So despite my love, there are very few Arthurian tales I actually *like*: Mary Stewart's Crystal Cave series, Jo Walton's King series, the first two-thirds of The Once and Future King, a few others.  (And god, if you have other recommendations, PLEASE give them to me.)  The BBC's new "Merlin" has steered pretty clear of romance thus far, so they've avoided the usual pitfalls.  But Alas!

Spoilery thoughts on the 2.04 episode of "Merlin" below the cut.
( Spoilers for Lancelot and Guinevere )