I totally understand the time thing. Time is -by far- my most precious commodity. I don't care if you're going to be late, but LET ME KNOW so I can put that time to more productive use.
It's really, really aggravating.
Me: 39 straight male in a V with
Wife: Kay - mono female - married 17 years
LDR girlfriend: Susan - poly female - 3 year relationship
Stakes - very intimate friend