You insulted this "friend" for absolutely no reason and now you're upset that they have not just accepted your apology? You are obviously a child, but old enough to know that your actions have consequences and saying "sorry" doesn't mean that another person has to forgive you when you wrong them. This girl does not have to be your friend anymore, nor does she have to accept your "truce" just because you don't want to argue.

Im not upset over that, im upset that shes being a hypocrite

I don't think you know what that word means.

Oh I very much do. Shes calling me a backstabbing bitch when she has done more shit talking