It's dh's dnephew birthday today, he's 12. I've been waiting for any sort of communication from sil to say 'this is what we're doing for the birthday at time 1 2 3'. No message came - assumed she was doing something like cinema etc with his friends and not asking my 2 ds (that's fine they're nearly 3 and 1 so big age gap). Commented on her face book post earlier happy birthday to dnephew hope it's a good day and got the reply - thanks see you later for the party. Now I have plans made since October but dh made plans in the last few days and ds's are going to stay with my parents which is an hour away from Where the party would be. I asked dh had he heard anything about said party- no. I had no communication about it either. Aibu to think you don't assume that people know a party is happening on a day especially over Christmas and to have made plans. I'm in 2 minds whether to just cancel my long standing plans and bring the boys to the party.
Not to drip feed sil has form for this type of thing. She phones in the morning asking if she can take the boys out and is thick if we already have plans made and won't cancel them (last Christmas she wanted to take my ds1 who was only 21 months to the cinema. Rang the day of one of my best friends weddings and left 4 missed calls on my phone. I left the church thinking someone was dead and she said she wanted to bring ds to cinema. She hung up on me when I told her we had already organised childcare for the day for ds - obviously as we were AT the wedding at that point)
Another important thing is that she spent the last month not talking to any of her family, me included.
So aibu