It's so great that you feel this deeply for your friend....however, you might have to let it go....unfortunatly, distance is a key to fade some relationships.....I had very good friend from high school....but we were apart for ten years....we were in touch through email, chat and talking on the phone....or when I was visiting my home land which was just twice in past ten years....anyway, she moved here and I found it so difficult to communicate with her....we were changed....we were totally changed...it was unbelievable....I couldn't understand her and she couldn't understand me either....so, sometimes we got to accept the fact that we can grow apart....
besides, if your friend is really in need, she can get in touch with you.....
or just ask her!
take care
Marjan