He was not the one for me

i had an eleven mouth relationship with man when he got back with his ex girlfriend. he told me that he loves both of us and he will not leave me because he and his ex is back together.he said i was always there for him and i never treated him bad, i told him i understand but to me that was shit, crap because if he loved me he would do that to me. i believe it was God plan for us to fall apart because he was not the one for me.