Along the way we may wonder if we failed to discern fundamental flaws in our partners when we were courting. We wonder if we made poor decisions in marrying the people we did. Or we begin to demand that our partners change. Resentment grows. Contention increases. We move away from the early days of cooperation and toward selfish concerns: What about me? What’s wrong with you? Why don’t you act the way you should? Satan laughs and heaven weeps while we feel cheated.