Sorry if it’s a bit long I don’t want to drip feed.
So it’s my mums birthday soon and it’s a big one so my dad wants to plan a surprise meal for her on the closest Saturday to her actual birthday (all she wanted was a meal at a specific restaurant with her DH and kids), he got me to create a Facebook group chat (he’s not very good with phones so doesn’t know how to himself) with family members as he thought it would be nice to ask if any of them would like to come aswell but no pressure if they don’t
Here’s where the problem is my mum is a twin and mums twin was added into the chat and asked if she’s wants to go. Mums twin and her daughter are now cross that my dad hasn’t included her in the surprise meal (as in pay for her aswell) and has left the group chat and won’t talk to me now. She is actually going to Vegas with her partner as her present a week after her actual birthday.
So aibu to tell mums twin and daughter it’s not up to my dad to arrange a surprise meal for her when she has kids and a partner of her own that could organise one.