greensleeves:

And so he should go to the wedding, why? Myself, I kind of agree with you that I think this whole invitation to the wedding is probably a set up so they can publicly humiliate him in front of all their family.

You honestly think a woman would use her one (and hopefully only) dream wedding day as a ruse to humiliate her father and his wife?

And remember, the LW's entire basis of dismay is that she's NOT the center of attention in that family. I wonder if she got the wedding she wanted when she married the father? Doesn't the father's daughter deserve the same?