My bestfriend and I are drifting apart.?

I think the best way for you and her to reunite and come back together. Is to sit her down and tell her how much you care about her and how important your friendship is to you. Tell her all that you said up there and that you hate that you feel like your not as important to her. Just let her know how you're feeling and then maybe she will realize what she has been doing to you. Good luck!