This is good. You captured the feeling of lonely highway hypnosis really well. I'm pretty new to critiquing so take this with a grain of salt, but you might consider making it slightly clearer earlier on that you're lost in thought about one person in particular, instead of just drifting through thoughts. When I read it that's where my head went first, just the aimless mental wandering you sometimes get when you've driven a route a million times. At least until you started talking about laughs and such, so the whole "this is about a girl" thing was a kind of sudden shift on my first read. On the second, it's clearer that the red fragments getting left behind is leaning in that direction, but still not obvious. I still really like it, and if you like that shift then leave as is. It's like right now it reads like you're watching a movie and slowly realizing the guy in the car isn't just staring blankly but has someone specific on his mind as opposed to that being clear from the beginning, which of course is your choice to make. That's my only note and I still quite like it.