Psychology Today | 17.07.2026 22:04Infidelity can cause deep grief within a relationship. In this case, grief means the loss or death of the relationship both partners knew. That relationship has been irrevocably changed. Once partners grieve, however, they can allow room for a rebirth. That rebirth is the “new” relationship they start to rebuild. So these are related steps: grieving what has been lost while renewing a commitment to rebuild.
