My very awesome and overly gracious MIL is throwing a bridal shower for my Fiance and I today. The final count for the food went into the hall on tuesday. My Family have no grace or etiquette when it comes to events like this. I have an Aunt who RSVP for the shower. Last weekend she knew that this weekend she would be going to Massachusetts to pick up a motorcycle. As of last night around 10 pm they were just checking into her hotel. She has not called or messaged me to cancel. I feel I'm in a bad position because, my MIL is paying for everything and now if my aunt is a no-show she is out of the money for that plate of food. Should I say something, I'm feel upset and slighted over the lack of respect my Aunt has for me and my future family.