Teenage Wasteland True Blood “Trouble” HBO Sundays, 6/7 EDT Written by Nancy Oliver Directed by Scott Winant “Please be my vampire bride.” —Franklin Mott I always knew James Frain was a hell of an actor, but his ability to say that line without cracking up confirms it. No phrase uttered this season so beautifully captures the mix of self-mocking black humor and cynical irony on which this show is built. After last week’s yawn fest, this week’s episode revs back up to the level of self-mockery and wicked delight we’ve come to expect from this series. Eric, having literally thrown…