Kevin Barnes, who made all the sounds on the Ur Fun
album himself, says this song is "seeing the perspective of the other person in the party of three." Barnes, who was dating the musician Christina Schneider when he wrote it, based the story on a friend who was in a polyamorous relationship. In a Songfacts interview, he said
: "It seems like polyamorism is becoming more common and more accepted. When I wrote it I was just starting my relationship that I'm in currently, which I'm happily monogamous in, but I never knew that I could be happily monogamous - I always felt like I would lean toward polyamorism. But from other people's experiences and through my own dabbling in it, I realized it's very problematic and it actually requires more work, more emotional labor than just a conventional monogamist relationship. That's why it's a bit more critical of it: because if you are the third person it could be frustrating if you feel like you've got to spend the night alone because your girlfriend is going out with her girlfriend or her other boyfriend. So it's a song about that."