Guillaume is and always has been a leaf on the wind.
By no means due to circumstance Guillaume has always been a nomad. From a reasonably normal family he always opted the road less traveled, for better or for worse. He was not known as severe or overtly benevolent or not even really known at all. A man passing through but from no place. Moving through the world like the changing of seasons.
Maybe he walks the road to get somewhere, maybe he walks the road because it is there to be walked.
"People who are always moving, with no roots in one place or another, avoid responsibilities and cares" - Publilius Syrus
Keep on keeping on.