Why? Because of Motivational Speakers like Joel Osteen and other Prosperity Preaching Pimps! They WILL NOT rock the boat and preach about SIN as Michael Snyder mentions in the article below.
One key word here is “WITHOUT” and a second is substituting “Cheating” for ADULTERY! What is a Christian doing going to a strip club? I suppose it makes it OK if you go with your spouse? NOT!
In man’s attempt to soften the tone of the word, many also refer to it as “Infidelity”. Infidelity (also referred to as cheating, adultery, or having an affair) is a violation of a couple’s assumed or stated contract regarding emotional and/or sexual exclusivity. Source