You're right, "Tough Love" isn't the best answer for ED's ... it's like telling a schizophrenic "okay, you can stop hearing voices now ..." The best thing you can do is show her as much love as you can, tell her how beautiful she is inside and out, and how much you cherish her as a friend. Gently encourage her to seek help through the right channels, and just be there for her. Give her lots and lots of cuddles! Also, how are her family handling this? Perhaps if you feel that they are not aware of the situation, maybe you should have a quiet chat (as her family are probably in the best position to coerce her to continue seeking help)

The more love and caring she has in her life, the better chance she will have of beating this terrible disease.

Good luck!

Tam