With all due respect, @stuck808, nowhere in there does it say, "don't figure out what went wrong in the M in the first place."
It says that if your goal is not reconciliation -- and Not Reconcile and Not Figure Out are not synonyms -- then you have no reason not to move on to the next person. One could have all the self-awareness and self-focus and growth and study in the world and still not give a fiddler's fart about the person who left them.
