busted

I went to a bar where a friend of mine works. However, he got a day off that I didn't know. Anyway, I had several drinks there myself. A woman sitting far end of the bar asked to me for joining. I OKed and we had plenty of wine and gin. We kissed at the bar and went to her place at the end. I didn't leave any contact info, neither she did. As a matter of fact, I lied that I'm a single. after weeks later, my old friends who form a NPO asked me and my wife to join their voluntary work, which I OKed. As we gathered at the work, I saw the woman that I got laid, and found out that she was a friend of my wife...