While in a monogamous relationship seeing an attractive woman and finding her physically appealing is a normal thing. Reacting to that attraction and cheating on the one committed to you is NOT! Sure, some men will tell you it’s OK and a biologically natural thing for a man to do. That is only rational thinking for when we were only animals grunting about in the bushes; not today. Following through on an urge to be unfaithful can be everything from a bad mistake to sexual compulsion to a form of addiction. A grown up should know better and if you can’t control yourself, do what I did; get help. Don’t let it come close to destroying your life as it almost did mine.
To cheat oneself out of love is the most terrible deception;
it is an eternal loss for which there is no reparation,
either in time or in eternity.