That one guy was uncomfortably scummy "IT's just cheating all guys do it" excuse me NO WE DO NOT! I would greatly appreciate you don't lump me in with garbage like you thank you very much. There is NEVER an excuse for cheating. If you really aren't happy with your current spouce GET A FUCKING DIIVORCE! Cheating basically means either you don't have the confidence to find another woman willing to actually marry you or you want to leach off your wife while enjoying other women. Either way it's just being pure scum.
Even if you for some reason can't get divorced then at the very least be upfront and make a mutual agreement to find other partners while maintaining legal marrage. Not saying that's a GOOD solution... but it's better than going behind her back and cheating.