How would you feel if somebody who you hated hanging out with, and you were always desperately trying to avoid, went and hung themselves?

I had a strange guilt a few months ago. There was this guy at my work who was always asking me for rides. I didn’t want to give rides all the time but I gave him quite a few and was thinking he’d move on to someone else. He died after a couple months. I didn’t know he was sick. I felt so guilty for not wanting to drive him when I found out he had died.