How can i choose between parents and boy-friend but I love both..

I fell in love with a boy 7 years in spite of everything my parents forced me to marry another guy that after 1 year of marriage I could divorce. Now my parents want to do re arranged marriage and I want instead to marry the person I love for 7 years. please someone can give me some advice or help. my parents are threatening to kill me if I choose to do marriage for love. I can't live without My love. They told me to choice between them and My boy-friend