Husband and wife become best friends, as long as they welcome, honor and make God and important part of their marriage or relationship, then; their conversations become impossible for others to understand. No place for third person, the devil to sneak in to destabilize or destroy that relationship. Real relationship results from God; where two love each other; sharing anything and everything; with no: boundaries, lies, secrets, fear or shame. Bring God into your family, and keep Him as your life until death, that is the secret of lasting happy married life.