When two people are under the influence of the most violent, most insane, most delusive, and most transient of passions, they are required to swear that they will remain in that excited, abnormal, and exhausting condition continuously until death do them part.
The chief cause of unhappiness in married life is that people think that marriage is sex attraction, which takes the form of promises and hopes and happiness - a view supported by public opinion and by literature. But marriage cannot cause happiness. Instead, it is always torture, which man has to pay for satisfying his sex urge.