I can speak to this from first hand experience. As I have mentioned before, even though my first wife initially accepted and encouraged my CDing, other problems festered and a ten year long marriage collapsed. The CDing didn't cause the break up - poor communications, issues of trust, an inability to discuss problems calmly, and low self esteem (I'm talking about both parties) are all things that were problems. The CDing only became an issue when the marriage was falling apart.