If you're uncomfortable you don't have to do anything you don't want to.
It's like someone made a roller coaster of awkward moments with each peak going higher and higher until you either regret your decision for even going on the ride, or you're thrilled with the climactic end.
It tackles actual marriage issues and questions of sexual identity, but in the end doesn't have much to say about either. It has a hell of a time just exploring them though during the course of one night and two couples.
Second movie I've seen from director Patrick Brice this year, with the other being Creep, it's clear that he and the Duplass Brothers have no interest in making films we've seen before. How he restrained himself and kept this film low key despite having huge WTF moments is beyond me, but the film is stronger for it.