Sometimes the marriage was consummated and sometimes it wasn't, hence, the concubine. In these early times, only the man had the ability to end a marriage in a divorce, the woman was stuck if her predetermined husband was a louse. While this was a less than equitable arrangement from the woman's point of view, it provided structure. A wife was bound to her husband for as long as he lived. There was no alternative.
Men are no longer in control.
Finding a mate takes work and most of the time the man has to take the lead. Men are still trying to figure out this added complication to their lives. Women are in touch with themselves and want to be in touch with their mates. Men can no longer treat a woman as a possession, like a suit that is no longer fashionable or an old set of golf clubs. In some ways, women are determined to make men suffer for their past transgressions.