Maybe it has never occurred to anyone that if a couple decides to have an open marriage that it may be a sign that the marriage is in trouble already.
Too often people try to fix sexual problems in a marriage by trying something "new." All too often it fails because one or both partners are emotionally immature and dishonest about feelings and reactions while forgetting about the partnership aspect of marriage. That doesn't mean that it can't be done successfully. Maybe a couple decides to do this because the marriage isn't in trouble and this really is a choice they made together. Is it so hard to believe that two people can choose this without there being trouble in the marriage?
And, believe it or not, I have a bias, too. A few years ago, I decided to allow my husband (very grudgingly) to find a woman who would satisfy him in a certain way I was unable to do. It ruined our marriage completely. I didn't really want him to do this in the first place. My husbands morals certainly don't match mine.
What happened to you doesn't sound like an open marriage to me. It sounds like he got a piece, scott free. Being badgered into accepting a situation that's repugnant isn't what open marriage is about. He showed an incredible amount of lack of caring and understanding to push his wife in this direction.
That is what I was thinking, why get married?
Marriage is for establishing the home unit in anticipation for raising children. Marriage is for establishing legal rights on survivorship, health issues, money benefits and passing inheritance and property.
Ultimately marriage is a partnership, with self defining goals, encouraging in self development, and offering human companionship. That is, in an ideal world; too often marriages fall short because couples do not define goals in a marriage, nor it's purpose.
Unless you like living with one person and having sex with another or more. If you are not religious, then it really wouldn't matter anyway, would it?
I think when men had more than one wife, including in the Bible (for example, King David had 7 wives), was almost better than just having one. I think some men get bored with just one woman, sex-wise. Of course, then women would want more than one husband.
It matters very much. I have never seen marriage as a religious institution but a legal one. Your right, some men and women- really most folks do get bored with one partner. Just like, who wants to eat baloney sandwiches for the rest of their life? Not many people do. Some are just better at repressing those urges, others choose to honestly and respectful explore those urges.