This is so very true. It never ceases to amaze me how it never seems to occur to those people who speak poorly of others behind their backs all the time -- how much they are actually speaking of themselves with their actions. Speaks volumes to me of their own character.
After 20 years with my husband I would have bet my life I understood his energy. I trusted him completely. But he had an affair that I never would have thought was possible. I don't think I was wrong about him for 20 years. I think people change.