He complains about the money she spends. Physical intimacy to him has become fast and furious, more selfish than sensitive. And gradually a sickening feeling of disappointment settles down in her heart. Sooner or later that disappointment will fade into apathy or flare into anger. The apathy or the anger grows, and the couple has arguments, then fights.
Damage occurs in the relationship.
And before the damage is healed, more damage is inflicted. Their hearts grow callous, then cold. In the Olivet Discourse in Matthew 24, Jesus said that in the last days the hearts of many will grow cold. And in my own experience as an observer of the many marriages that come through my office, I've seen more cold, cold hearts than Hank Williams ever dreamed about. It says, Therefore, as God's chosen people, holy and dearly loved, clothe yourselves with compassion, kindness, humility, gentleness, and patience.