Yeah I think cheating or lying is horrible. I do understand though that in the past when divorce was unacceptable or unattainable, especially for women, so there was often no other choice but cheat. Or when people couldn't openly date and had to hide. It's still the case in many cultures. There is no need to do any of it nowadays in the western world whatsoever. We are free to do whatever within limits. Heck that dude who slept around could probably find a girl who wouldn't mind.