It's a milestone birthday next year for me so my family (mum, Dad, me, my partner, our 2 young children, my 2 sisters and their partners) have booked to go on a holiday in the UK for the whole week, including my actual birthday. On the day itself I've asked my closest and oldest friend and her husband to join us for the activity I'm wanting to do. She only lives 45 mins away and we live 4 hours apart normally. She's turning the same age as me the week before so we want to get together. One of my sisters has flown off the handle saying I'm being spoilt by wanting to spend my birthday how I want. My best friend isn't joining us for the whole holiday, just one afternoon but my sister is saying the holiday is ruined and she's not going to be joining us. It's already mostly paid for (split per couple and a bit more for us because of the children). AIBU?