Bf says he will marry some else

Been with him for a while and his the love of my life he says he loves me to ... but he has to move to America and apparently his goal is to marry there and start a business ... my gut feeling says he already has found someone "arrange marriage" 
I feel so shit and broken... that if he loved me he would do anything to marry me. 
I told him if I was in his place I would never leave him for the world.