My step dad approached me and siblings a few weeks ago about booking a meal for Mothers' Day, to treat DM. It was suggested that partners not be involved. I have a DH and two young children, one sibling has a baby. It was suggested that it be an evening meal, which I was fine with as I could spend the day with my family then go out for DM's meal and DH could stay home and put DC to bed. All fine.
Now it appears that although our partners aren't invited DM wants my step father there and he can only make the afternoon.
AIBU to be put out that I'm being expected to spend Mothers' Day away from my DH and children for the sake of DM and step dad's preferences?
I'm really not precious about Mothers' Day, I don't expect presents or any special treatment, but it would be nice to spend my first Mothers' Day with DC2 actually with her doing something nice. It's also my penultimate weekend before going back to work full time.
As I agreed to the evening meal I now feel like my family would think I was an arse if I pull out now it's been moved to the afternoon. I get on well with all my family and don't want to cause upset, but since DH can't do anything with his own late DM I feel harsh saying he can't come. How do I respond to this?