I believed - and made my husband believe - the same things.
But love that results in marriage - that results in children and the closeness that you and your wife have shared over so many years...that kind of love does not die. I don't believe so anyway. It gets pushed to the very bottom of one's heart through trial and circumstance and it becomes dormant. The doorway is then opened, at just the right time, for doubt, insecurity and a longing for what "might have been"...to enter. You said you believe in evil. THIS is evil doing it's finest, most wicked work. Wrecking homes. The very structure, the fiber, of the community. Destroyed at it's core. And then that opens another doorway, for that same evil to work in the lives of the children of divorce. They will never function as "whole", healthy human beings. Something very sacred is broken in children when their parents divorce. Something that cannot be repaired except by the love of God Who most of the time, is never even asked to step in and save anyone much less the family itself.
We, through so many different avenues, will hold the door wide open for the enemy to come into our homes but won't even consider cracking the window for the healing power of God to come in.
