I will not defend this woman, as I would like to beat her up for you. But.....
You are so mad at her, I think it's clouding your vision.
She called to tell you about a family oriented event. You asked her the worst possible question IF you were interested in doing something with her to see the interaction, her demeanor as this would be the first time you would have done anything with her since finding out about the cheating....but IF you wanted to put her on the spot and make her feel stupid for telling you about the event, your question was right on.
