By: Addison Wylie I bet if we scoured filmmaker David Wain’s DVD collection, we would find romantic comedies.  A lot of them.  It takes a certain kind of guilty affection to lampoon a genre this immaculately. That’s what the absurdist has done with fellow writing cohort Michael Showalter.  The two collaborated on the cult hit Wet Hot American Summer – which took the piss out of camp movies – and now they go for the…