pari..ajeeb sa barthav hai aap ke friend ka....for someone u have been so close to, the least the person should do is state what is the reason for suddenly cutting off. shayad aap ka friend unhme se hain jo apne feelings theek se bayan nahi kar sakhte hain..sometimes because of teh distance, the person may feel its better to cut off completely so that u can then forget them and go on with your life.its difficult to say coz the human mind is so complex. all i would tell u is i personally feel that if you truly value the friendship..then mail her once and ask teh reason for such behaviour & how hurt it has made you feel. if u get no response to this, then drop it & move on. In life its easy to break friendship but good and true friends are few and far between...