Help with my long term girlfriend and her parents?

ok recentely my girlfriends parents have been trying to seperate us because the dad dosnt like me or my parents(i really love stephanie with all my heart just looking into her beautiful brown eyes and it takes all my pain away)i could tell u how much i love her but it will take forever. ok so basicly i told my girlfriends mom how my parents do drugs because i trusted her and ive been with my girlfriends for a little over 9 months and i love her with all my heart. the mom told the dad n they said that she couldnt be with me because of it.(you cant really choose your parents) anyways they said we couldnt talk at school (they tried but i talked to the principal and they failed because he took my side) and they said they were gona put a restraining order on me ( but her mom said they couldn't because im a minor) im 15 and my girlfriend is 16. they blocked my number so i cant text her or talk to her out of school and schools about to end and she will get a car and come see me. she talked to her parents and said because of this you know ima move out aat soon as im 18 and you will never see me agian(they think they can keeep her there as long as she wants) n they said no your not moving out untill your 20 or 30 and if your dating him now ill beat you purple(we are together now and forever) and the dad said i wasnt nothing but trash ( ive never done a drug in my life or smoked or drunk and im a honnor roll student)...basicly me n her decided we will date in secret from them untill she is eighteen and she will move out and live with me because we truley love each other. So i want to know what you think i should do about this situation and could they put a restraining order on me for no reason and they cant stop her from moving out once she is eighteen right. any help would be appreciated.(and dont say just move on because im not i love her too much to ever do that)