Some couples have reached a consensus regarding extramarital sexual relationships, as is the case when one partner has decided to pursue gay relationships with the consent of the partner.
Consent to extramarital sexual relationships can be passive or active; it can implicit or explicit.
They look carefully at the familial legacy of each partner and pay attention to the phases of the marriage, i.e., years of marriage, ages of children, empty nest phase, etc.
During their professional careers, most marriage and couples psychotherapists have dealt with marital crises brought about by affairs.
While extramarital affairs are very common, couples psychotherapists are often uninformed about how to address the infidelity crisis.
Ignoring the fact that affairs are common and part human nature, their prescription for healing infidelity is that the "sinners" must fully confess and repeatedly atone before they can be forgiven by the victimized and betrayed spouses.
The latter approach may be more harming than helping for couples in crisis as it often focuses on one-sided blame to the exclusion of the marital, sociological, evolutionary and technological (i.e. Another major misperception among lay people and psychotherapists is that extramarital relationships are never consensual and are always harming to the marital relationships.