Then there’s this gross reaction: “Hold on—you’re saying I could have been cheating this whole time, too? I kept it in my pants for nothing!”

The reality is that if this man were determined to leave his girlfriend, he would have done that regardless of you. If he were miserable enough to leave, he would have just left—side piece or no side piece waiting for him.

I pride myself in being a loyal and brutally honest friend, but when two of my friends disclosed that they were messing with married men, I didn't have the response I expected.

I used to be that person who judged cheaters, as I never understood how someone could step out on their partner if they truly loved him or her. That was until I got older. Years ago, I was attracted to a colleague who just so happened to be married while I was seeing someone else. […]