Backstory -
Don’t speak to Sister or BIL but DD has contact with cousins.
Parent usually sees S+BIL on Christmas and we see NYE.
GP previously asked DD (9) if she prefers spending time with Grandparents on own or with cousins and answered on own so they made a promise to see her on her own like they do with cousins.
This year parent saw S+BIL Christmas Eve and Christmas Day as normal and when it came to NYE asked us to drive to theirs (1.5hrs each way) and wait in their house for 6 hours in the evening whilst they took DD to panto with her cousins. They’d be back for 10pm so in their eyes could see new year in with us. Shame we weren’t going to see parents and DD all evening but nice they were treating all the GC to an evening out. It then came out that S+BIL was going, DD then didn’t want to go as didn’t want to be looked at wondering where parents were. I felt completely excluded it was our one night to see them and they’ve chosen to spend it elsewhere, it’s even more hurtful they didn’t want to spend time with DD on her own like she asked or go with us. AIBU to feel upset by this?