Gate, DublinThis intricate production of Nick Payne's high-concept romance poses existential questions with elegance and levity There were two lovers, Roland and Marianne, who lived in London, New York or maybe Dublin, now and never, once and always. Nick Payne's 2012 play lifts us from this current moment, offering a wider and infinitely giddier view of existence. Whether seen through the eyes of Roland the beekeepe…