That was a nasty, horrible thing for him to do. I think you should just ask him why he did it? What is his issue with you that he would launch into such a deeply personal attack? If I were in your shoes, I would want to know what the real situation is. And often, complaints about appearance are a coward's cop-out, because they don't have the balls to bring up the real issue, whatever that may be. And, until that is discovered and resolved, nothing between the two of you will feel "right".

I don't know you, him, or the situation, but I have to say, he isn't much of a man if he attacks his wife like that, especially when she is already in a vulnerable place psychologically.

If you don't feel strong enough to discuss what happened alone with him, I would see if he would be willing to attend a session with your therapist, or perhaps another "neutral" couples therapist. It sounds like he has a lot of issues of his own, that didn't come out of thin air.