>I have no doubt there was a "romantic" relationship. It was probably a brief one that she wanted to be more. And when he went with another woman -- one she probably felt inferior to in some way -- she snapped.
>
>Pure conjecture, of course.

My best pure guess is that they never did have a romantic relationship but she wanted one and felt that the other woman was the only stumbling block. A classic case of not waking up and smelling the coffee.