Sorry it's another Christmas related one, but I need a bit of perspective.
For background info, we have been married for 15 years and have 4 children (14,11,9&4).
In those 15 years, we have had 1 Christmas where both of us had Christmas day and boxing day off work together.
This year we are both off for Christmas and boxing day and have made plans to spend 25th with extended family and then have our own Christmas lunch on 26th with just the kids and everything has been bought and prepared for this.
This morning he has told me that he's now agreed to swap a shift with someone he works with, and will now be working boxing day.
He works in a restaurant with 10 staff, 8 of them are Muslim and don't celebrate Christmas at all, 1 is Muslim but married to a non Muslim so they do celebrate (this is relevant because they have time off over Eid and other religious days) and dh is not Muslim.
Aibu for being annoyed he's left it until last minute and then changed plans, when this is only the 2nd Christmas in 15 years that we have both been off for Christmas and boxing day? It's the only time we will have off together over the festive period as the restaurant is busy and I'm a nurse so will be working my usual day and night shifts.