Let’s tell the truth. It starts with a look. A smile. A quick message. Maybe it’s a co-worker, a gym buddy, or someone in your friend group who gives you a little more energy than you’re used to ...

I always assumed that it’s just bad guys who cheat. But several of my girlfriends are doing stuff that I think’s questionable! So what is cheating really? And how do I keep my marriage cheating-free?

Welcome to Asking for a Friend, an advice column that helps you make sense of your messiest, most complicated friendship moments. Each month, clinical psychologist Miriam Kirmayer, PhD, will answer ...