With my first wife who cheated even before and after we were married, all our close friends and both of our families knew. Her family knew she was cheating even before we were even married, her brother facilitating it.
My current wife and my friends and family knew before we were married saying non-traditional vows with our Best Man, my childhood neighbor, semen inside her as a symbol of our commitment to our Lifestyle. While not being in anyone's face about it we live our Lifestyle openly with my wife's paramours at various family and social functions with and without me.
Meeting in Chicago, living on Caribbean Islands, in Europe, and now in hot wet sexy interracial Miami we have never had to worry about the US small town mentality towards enjoying natures greatest gift sharing freely with like minded people we are sexually attracted to or she enjoys as conquests.