It's not that she's having s bit of fun, it's the fact that there are signs everywhere in this story that show she is most probably being unfaithful, unless you are too blind to see that because you don't want to accept what is happening (talking from the guy's prospective)
I don't want to live in a world, which the behaviour of that woman, is acceptable. " chill out man, she just got a bit nude, what's so bad about that " Let's all start sharing wives and chill out a bit, ffs, ridiculous The guy should man up and take manners into his own hands, wake up Edit: phone autocorrect, matter*