Greater of two evils?

I can't decide which is worse 'evil' in life: the endings that come abruptly and you have no idea they are gonna happen until after they do (and you're left feeling like you were sideswiped in a hit and run); or the times when things drag on and on, way past when 'goodbye' should have been said, (because neither party wants to throw in the towel even though it's for the best)?