Used to be that I embodied the whole "loneliness of the long-distance runner" thing. Running odd distances at odd times at odd places was the basic theme, and synching up with someone to run with was mighty difficult, just from a logistical perspective.
Moreover, I just liked running alone. Me and my thoughts. Want to add a loop? Just do it. Bushwhack to intersect another trail? Done, and a fine adventure to boot.
But now I prize the easy companionship of running with friends. Yesterday I ran with my noontime running buddies from work, and it was as easy as Sunday morning.
I'm working on a longer post on this theme next week.