Not sure if I'm being petty?

[PassMeTheWine]

Yesterday Me, DH and our 2dc's booked a nice meal out for today.
A few hours after we booked it his DF called and said they were all going out somewhere else for food and did we want to go with them.
Totally different restaurants/food. I have my heart set on this meal so I told him to go with his family if he wanted
and I will carry on with the original plan with the Dc's.
Can't help but feel a bit sad that he's not coming with me and his children on mother's day.
Am I being petty?

He made his choice but you know, actions have consequences, and all that.

I'd be disappointed too.

Yes you are bring petty. Looks a bit huffy TBH.

He should have stuck with the original plan or invited them to join you.