Ask Amy: Parents bemoan daughter’s Bridezilla transformation

Dear Amy: Our 25-year-old daughter was a strong, compassionate, emphatic, loving person until her upcoming wedding turned her into a self-centered brat.
We gladly gave her some money to offset wedding expenses, and then things went haywire.
She has told everyone the cost of her wedding is $350/plate, and expects either cash, or a gift equal in value.
I am beyond appalled, but she claims this is quite acceptable to her generation. I told her that rude is rude, no matter what.
She has also refused