I had this vague melody a year or so ago, and at the time it was starting to become a song about riding my bike at night, drunk. I stuck it on the backburner until after I saw that Johnny Cash bio-pic, where they sing that June Carter duet "Time's a Wastin'" together, (which they never did in real life.) So then I got this idea to write a nice country duet like that, but instead of it being all happy and fresh-new-relationship-let's-consummate-it kinda thing, I wanted it to be about people that hated each other intensely. People that were sick and tired of seeing each other everyday for years and years. Then, for an added twist, I forced my lovely wife to sing the harmony part. We actually do like each other, though.