What should I do?

I am not a big social media relationship kind of person...I have been with my boyfriend for 6 months...He INSISTS that I POST our pictures and that "facebook MUST be filled with our pictures" I just don't like that "facebook love" kinda thing and I am shy..I have pictures of my self in some special events (my brothers wedding, my prom couple years ago, and when my friend graduated college) he says to me that we will break up if I don't post him. Also we have a problem, we are from 2 different nationalities and 2 different countries that were in a war during 1990...My father isn't thrilled about this relationship, and my boyfriend instead of asking for some compromise he "DEMANTED ME TO DENY MY FATHER, TO BLOCK HIM, AND TO SEE HIM ONLY ONCE HE DIES TO PEE ON HIS GRAVE" I love my father, I know he is a good person, that war took his youth away, and he just needs some time to accept my boyfirend, I don't want to loose my family....We are in a relationship for only 6 months I don't know why is he being so demanding and mean...What should I do?