Hey im sorry things are hard.
At the end of the day you are his little girl and no-one will probably ever be good enough, he just wants to protect you as he loves you so much but somewhere along the way it comes out all wrong.
He is also probably scared of losing you, i would sit down with him and tell him that all the arguing is upsetting you and that you love him so much, and that just because you are moving in with oh doesnt mean that you wont still need him. I think sometimes dads feel like there is no place for them once there little girl gets a partner, but there is its just a bit different.
well this is what has been my experience
good luck xxDBXx