I need help..........................… help me

i'm divorcee.i had 7yr boy.after 8 yrs one of my frnd love me he ask me to marry. he convinced to marry also.we got permission from my family side.after that we gone outing and also had physical relationship after my engagement.now i got problem becoz of him girl frnd.she wants him always and also interupts our relationship.now it leeds to end of our relationship.now he left me What to do. I love him very much. i cant live without him pls advice me. What to do