Is Cheating The New It Thing?

I'm beginning to notice a pattern, for every ONE "committed" relationship, there are three, four, maybe even five people in it. It is as if monogamy is no longer the thing to do. It has become so common place for people to cheat that even their families sit by and watch undisturbed as men and women bring over their significant other to one family event then a new "friend" to the next gathering. If a married man is out somewhere trying to pick a new girl, he no longer feels the need to hide his wedding band, even more sad is that women will still give him their phone numbers! I do not understand how cheating has become so accepting, so much a part of everyday life that no one is surprised to find that one or both people in a relationship is cheating. Why even commit to someone if you're going to continue dating other people? And who came up with the concept of an "open marriage"? Why would you take vows before God and family only to make a mockery of them? I believe that a marriage is a sacred thing, something shared between ONE woman and ONE man. When did relationships become a social orgy? Do you think cheating is the new it thing?