Any society that would give up a little liberty to gain a little security will deserve neither and lose both.
Life is a game in which the rules are constantly changing; nothing spoils a game more than those who take it seriously. Adultery? Phooey! You should never subjugate yourself to another nor seek the subjugation of someone else to yourself. If you follow that Crispian principle you will be able to say Phooey, too, instead of reaching for your gun when you fancy yourself betrayed.