yugoslavian women international dating - Dating sites for marrige
Some ground rules are universal in the sense that they apply to virtually all relationships in a particular culture.
Other ground rules apply to particular kinds of relationships, such as friendships or marriages.
There are many different styles of open marriage (such as swinging and polyamory), each with the partners having varying levels of input on their spouse's activities.
Nena O'Neill and George O'Neill changed the meaning of the term with the 1972 publication of their book Open Marriage, which sold over 1.5 million copies.
Despite these difficulties, researchers have estimated that between 1.7 percent and 6 percent of married people are involved in open marriages.