Sounds about right. :( How did your wife (or ex-wife, as the case may be) turn out?
She's been hospitalized a few times and unfortunately psychiatric care thru HMO's only makes these cases worse. She at one point actually had a psychiatrist prescribing her amphetamines because they made her "feel better". Well of course ED victims will feel better on amphetamines! Idiots in that profession!(most)
I've been fortunate enough to have had three kids with her and enjoyed her company for so long. I've gotta raise the kids though, because she's got it so bad.
One medication alone seems to help signifigantly, and that's olanzapine/Zyprexa. It makes the metabolism pack on pounds. It's scary to them though, but at least they aren't in that brain eating itself meltdown when on it. The trick is to allow them to control most of their behaviors as their own to succeed or fail, and only step in if it falls outside some arranged boundries established. This seems to work as well because they live for extreme discipline over foods. Let them not eat their plate to anything beyond half, and encourage them to eat only very nutritious foods in small quantities. Every pound they gain is seen as losing control, so you've gotta give them as much control as can be. She's been as low as 82 pounds and is presently at 110 pounds after a hospitalization. She's working at 120 as her goal. She was ok with the rise up to 110, but is really showing signs of panic over the next 10 pounds.