The relationship of husband and wife is very subtile. It is different from the natural relationship of male and female which consists only in the desire for sexual intercourse. This also was said by ihe king of Janaka's race.
भार्यापत्योर्हि सम्बन्धः स्त्रीपुंसोः स्वल्प एव तु। रतिः साधारणो धर्म इति चाह स पार्थिवः॥