There is a difference in being mindful and over analyzing, to me anyway.
I think to some extent, you are always mindful of the whys even when the marriage is going along well. My W is grumpy. I don't want to start to assume that its because she hates me, wants to leave or trying to figure out what it means or go in a 1000 different directions.
Patience is bitter, but its fruit is sweet. --Jean Jacques Rousseau.