Getting over my first love

Im married. After 20yrs, i came across my first love, who happened to be married as well. We went out to catch up, ended up dating more frequently. until we fell in love. we dated for almost 2 years until he suddenly lost interest. he never explained why. its been 2 years since we last seen each other. i heard that he is currently dating 2 more new women. it still hurts me even if 2 yrs have passed already. i need and want to get over him. i need advices.