My daughter turns 18 on Monday. Kids dad hasn’t seen his kids for about 6 years, but his parents see them every other weekend. His parents hate me because we’re not together. The birthday weekend is my weekend, but the grandmother went away last weekend so didn’t have the kids for her weekend. So she’s decided to book a restaurant, cakes, balloons etc for my Saturday night to take the kids out. I said no to my daughter, it’s not her weekend and we fell out about it. My daughter is working Sunday and out with her friends on Monday so I won’t see her then. Am I bring unreasonable by getting upset and saying no. I want to do the Saturday night and do cake, balloons etc for her birthday and I feel she’s ruining it and wrong to ask