Was he growing another head out of his chest?
I must admit I'm baffled by the story that he was traumatized by being asked to remove his shirt, after showing up to a casting for a role that would require it.
Now, for my tastes, he is remarkably ugly, and I wouldn't want to reveal that either. But come on. You show up, you do what the casting agent says, in terms of posing, clothing, etc. They don't want to find out on the day of the shoot that you're growing a second head out of our chest, named Bill.
The spite of this, carrying this grudge for long enough to gloat that she's no longer in that position is pretty childish. (Of course, we don't learn what position she does have).