Cheating is cancerous to a relationship; you can experience a benign episode of infidelity — it happened once, in a land far away, with a faceless person that is never to disrupt your lives again — you make amends and you move on. Your love is repaired, perhaps the threat of losing one another has made your bond even stronger.
Or, you can experience a malignant episode of infidelity, a growing, festering, illness that stealthily sucks the life out of your union until there is no chance for atonement or moving on.
The trust is gone, the good times are gone, and that thin line between love and hate is forever erased. You may not know what you feel for your mate, but it sure as hell doesn’t feel like love.