I woudl have to check out how "open marriage" is used more.. to my udnerstanding its a mutually consentual arrangement to satisfy needs outside the marriage... but I don't think there is any stigma attacked to it...
Precisely my point. So when it's NOT consensual, there's this "WHOA! -- WAIT A MINUTE!" effect. When you point out to people, in their posts, "So what then, you're willing to live in an open marriage?" (which someone challenged someone with just today, I believe), it normally gets a very strong, visceral response, whereas sometimes you get an "oh, it's 'just' an EA" from the same person.
Maybe it's different for the cheating spouse than it is for the betrayed spouse, but BSs, at least, HATE it when you point out to them that they're basically enabling an "open marriage."