One relationship. Infinite possibilities.'Let's go for a drink. I don't know what I'm doing here anyway. One drink. And if you never want to see me again you never have to see me again.'Nick Payne's Constellations is a play about free will and friendship; it's about quantum multiverse theory, love and honey.Constellations premiered at the Theatre Upstairs at the Royal Court Theatre, London, in January 2012.