Have u guys ever cheated on ur partner while u are in a relationship or married?

I admit, actually I did, once. That was v long time ago when I was in uni. I was dating my gf that time, when I came across this sweet junior during club activities. She was new to uni and I showed her around and treated her nicely. Soon, we love each other and I started the affair. My gf found out one day when her bestie told her. Soon, both side also left me. Both of them are really good and wife materials. Ever since, I no longer dare to cheat in a relationship anymore.

U guys?