woman look for guy The institution of dating is a relatively recent phenomenon, having developed mainly in the last few centuries. It was closely associated with marriage and the family, both of which have evolved considerably. However, sexual intercourse is one of the few biological constants. While many cultures are against the idea of sexual intercourse, others consider it necessary for the development of healthy relationships. Read on for some interesting facts about dating. Once upon a time, most couples only had one sexual partner. These days, however, many couples date multiple partners.