Also to add to this, it seems like he only started to like the woman/learn something from her after she began to lose weight. He specifically says that when she started losing weight he could see the shape of her breasts again or something like that (like great, I can see her breasts so she must be making progess). In that way he connects her weight loss to her being more likeable, which is again perpetuating a stereotype. It was only after she began to lose weight that he began to see her as a person, and he specifically connects her weight loss to her progression in therapy, as though the only way you can make progress or become more likeable is by fixing who you are on the outside, not vice versa. Seems like he is just reinforcing his old beliefs.
And another thing, she seems to have lost a great deal of weight in a very short period of time. (I think he said she was with him for less than a year) and lost what? like 80 pounds. That seems pretty unhealthy to me; healthy weight loss takes time. Also, he says she went on a liquid fast or something ridiculous. Liquid fasts are not healthy and Yalom is an idiot (or at the very least, extremely irresponsible) for implicitly promoting such an extreme, unhealthy way to lose weight and commending it.
It is just very sad that Yalom seems to think that is an OK way to lose weight.