AIO for blowing up at my mom on Easter

me (26f), my fiancé (26m) and our two kids (1 and 2) made plans to go to his moms house for an easter egg hunt. his mom works 7p-7a as a charge nurse, scheduled to work both the night before easter and the night of. we all (my fiance and i, his dad and my mom) agreed meeting at her house around 1p was the best option for everyone, as she agreed to set up eggs in her yard early in the morning after her shift and would still be able to get a little rest in before we got there.

to throw us all for a loop my mom planned a spontaneous road trip cross country from 3/30-4/4, and when i say spontaneous i mean she literally told me about the trip 36 hours before she left. she assured me she’d be back in time for easter festivities so i tried to keep my reservations to myself. to no surprise she let me know the friday before easter she wouldn’t be able to make it. i was devastated. my father isn’t in my life and i don’t talk to my siblings much, so this lead to me not seeing a single person from my family at all for the holiday.

after calling my grandma to wish her a happy easter i heard her mention something in passing to my grandpa about how my mom had gotten in at 4a. i was SHOCKED! she had gotten in at 4a the morning of easter and completely lied about not being able to make it to the egg hunt at 1p. i called her around 3p and she was super annoyed saying that i “woke her up” i asked if she was in town and she fessed up to getting in early that morning and wanting to sleep in. i blew up and reminded her of my fiancés moms schedule, and the effort she put in to make sure my kids had a special easter. she didn’t take kindly to that and we ended on a really bad note.