Continue or break up??!! Plz help!!?

I have this gal at school who is my very best fren( I am a gal!!!!)..I love her and her character..She is way too refined and good-mannered and a 100% loyal friend..She has all the qualities a good friend should have..So now she is not speaking to me properly..She is not bothered about me at school..I want her desperately..I am afraid that we are gonna fall apart..I am depressed..Plz help frens..Thanx..