Music in background of bar scene

When Scott's character is in the bar towards the end of the flick (he's just told Dan the story about his wife). There's a song playing on the juke box. Kind of a western ballad, very slow. A couple lyrics are: "the nights are rolling in" and "if it wasn't so true, well it might be funny". I looked 'em up and can't find them anywhere. I also can't find a soundtrack for the movie. Anyone know this song, or have any help? I really like the sound of it!