Damon and you had dated, many years back; in fact even gotten married. He eventually seemed to have lost interest and it ended in a divorce - you moving away from Mystic Falls.

Many years later, you got a call from his brother Stefan, begging you to help stop his brothers unpredictable killings.

You showed with reluctance, walking into the Salvatore boarding house to find Damon, shirt unbuttoned, and drunk.