In the world of dreams the rules of reality do not necessarily apply. Each dream is unique and it's a direct link to the soul and spirit. Psychology provides its own theories on what dreams mean, but so did tradition and the study of dreams for thousands of years before any relevant science had developed.
Dream Meanings - Ex
To dream of an ex-partner means that you still have feelings for this person and your relationship. This dream often means that you will hear news about this person or you will communicate with them.