Thus, the critical dimension in understanding whether a marriage will work or not, becomes the extent to which the male can accept the influence of the woman he loves and become socialized in emotional communication.
John M. GottmanWhen a couple gets to the last stage, one or both partners may have an affair. But an affair is usually a symptom of a dying marriage, not the cause. The end of that marriage could have been predicted long before either spouse strayed.
John M. Gottman