OMG, are you invading my mind? Figuratively, all through my life I sometimes, suddenly, become aware of heart-gripping loneliness while driving down the road. The road and everything on both sides seem like a prison. That leaves the minute I get out of the car. It has not happened since I met honey. : )
Literally, if given the option, I'll always choose the road less traveled. I've had incredible experiences and taken some of my favorite photos while traveling 'lonely' roads.
Figuratively, I guess I'd say my marriage was a long and lonely road. To me, emotional loneliness is most intense when you're with someone and feel alone.