I wrote [the song] in my freshman year of high school. I got the idea in math class. I was just sitting there, and I started humming this melody. I kind of related it to this situation I was in. I was dating a guy who was about to go off to college. I knew we were going to break up. So I started thinking about all the things that I knew would remind him of me. Surprisingly, the first thing that came to mind was that my favorite country artist is Tim McGraw.