mothers approval

im a bisexual teen n am datin a stud or dyke however yew see it n my mother doesn't approve of her because once she's stable n able she's goin to become a guy like ftm transgender n it means a lot to have my family's approval n right now it's jus my mother who doesn't approve my father who is homophobic approves of her n i don't know what to do i want only her I've tried relationships with other people n it never works i only love her n I don't know what to do