Unfaithful Husband should give him a chance?

Marriage is tough and to stay monagamous is very very difficult. The institution of marriage is a recent, man made concept and even then, in the early days polygamy was the usual way. So it's not natural for humans to just have one sexual mate. That said, I do like the concept of monagomy - i would hope that my spouse and myself dont cheat on each other - but intellectually I would not fault him or myself if we do end up sleeping with someone else.