Here's the truth about your fantasy of "biblical" marriage. Being "married" in the "biblical" sense, means fucking. Learn the truth. Basically, you can never un-fuck someone that you fucked.
) First, it is important to note that no one "gets married" in the Hebrew Bible (a.k.a. Old Testament). There is no verb "to marry" or noun "marriage" in biblical Hebrew. That said, a search for "marry" in the New International Version (English translation) brings up almost 50 hits. But what they render "marry" is "take a woman." A close look at all those NIV entries shows that women sometimes marry a man, but not really. The Hebrew is "be given to a man" or "belong to a man." For example, Numbers 36:3 is translated as, If "they marry men from other Israelite tribes" – but that is NOT what it says in Hebrew. Literally, the Hebrew is, "If they belong to any of the Israelite tribes' men …"
2) Nor is there a word for "wife" every instance of "wife" in an English translation is actually ishah "woman." The word used for "husband" is baal. It literally means "master."
3) The word "virgin" only applies to females. She must show the "tokens of virginity" (blood on the sheets the morning after), but there is no such requirement for men.
4) There is no marriage ceremony in the Bible, nor is does any official (priest or other) to preside. There is no government process. There are two moments when a woman might be said to "be joined" to her husband. First, there is a transaction between her father and husband-to-be. When the transaction is complete, she is "betrothed" to the husband. Then, following the wedding feast, the two enter the tent. Copulation seals the union.
5) Men can take multiple wives:
Abraham had Sarah, Milcah and Keturah;
Jacob had Rachel and Leah;
Moses had Zipporah and an unnamed Ethiopian woman;
King David had Ahinoam, Abigail, Maacah, Haggith, Shephatiah, Ithream, Michal and Bathsheba
Men may also take concubines (Jacob had two of those as well, Abraham had at least a couple, and God himself knows how many David had; concubines are like wives with no inheritance rights).
6) Biblical adultery is not simply "stepping out." It is the act of a married woman sleeping with someone other than her husband. In such a case, she and her lover have both committed the crime. On the other hand, a married man can indeed freely sleep with another woman, as long as she isn't someone's virgin daughter (in which case he has to marry her – that is, compensate her father) or wife.
7) The Bible does allow for a man to divorce the woman (and the word for "divorce" is literally "send away"). In such a case, he must give her "a letter of divorce" indicating that she is no longer bound to him. A woman can never divorce a man. As long as the man wants, she is his "till death do they part."
http://www.mesacc.edu/~thoqh49081/handouts/biblical_marriage.html