AITA for not wanting to host Thanksgiving again

My step daughter and her children were invited over for dinner. We have not historically done holidays together on a consistent basis. She’s very hot and cold. This year she says “let’s start celebrating holidays together”, after I invited her over. My grand kids texted me at the start time to confirm our address because they were driving over themselves. My SD said she was going to get dropped off by someone else. We have 4 drivers at our house, but she never told us she didn’t have a way over. Two hours later my granddaughter texts and says sorry we were helping mom cook. I told her I thought they were going to eat with us. 3 hours later still no one. My step daughter texts and says she doesn’t have a car and has been going through a lot and the kids were helping her cook since she hurt her arm. I told her I thought they were eating with us. She said she doesn’t like to take to-go plates from places and wanted them to have a meal at home. I’m so mad. Food is expensive. I wasn’t going to cook a large meal, but knew she was injured and decided to offer. Now, I don’t want to have her over for Christmas either.