Well, the bad news is she will gain it back when ever they let her eat again. There is something wrong with her physically and mentally and there is no cure which is unfortunate. Just because this girl is thin now everyone thinks she is "cured"
There was no will power involved, she was forced not to eat. Not that this was a bad thing, in fact that is what needed to be done. I feel terrible for that girl cause she will most definately gain the weight back.