Very sad. Its amazing how much of a slippery slope losing weight can be. I went from 230 to 150 in less than a year, using diet pills and skipping meals, alll while working out aggressively. Occasionally, I would get full and vomit.
I managed to stay somewhat healthy, as I was not overly under weight. But I was not taking care of my body the right way at all. When I broke the cycle, I lost so much muscle mass that it was really hard to gain my original form back. Proper eating and rest and taking care of yourself does wonders.
I had a room mate in SF who I saw beging down the same path. He lived off of cereal and healthy choice meals, often skipping meals and excercising twice a day for hours to burn more calories. He did not have the musculature to support his activity and nutritional depravation and was constantly sick. We pushed him to eat. But he would opt for a bowl of cereal for dinner when offered a steak. I think he got down to about 140 at 6'2".
I think he has bounced back, and was probably never go to an extreme. But there was really no getting through to him. Anorexia is like an additction. I hope there are not many of us on here that have to suffer or watch a friend suffer through such an ordeal.