DS1 is having his 4th bday party today.
When asked who he wanted to invite he said A and B. After encouragement I got a few more names and a month ago I emailed the parents of 10 children with the invitation.
6 accepted, 4 declined (including best friend A unfortunately).
B's mum accepted which thrilled DS. They were in the same class last year (not uk) and aren't this year but always play together in the playground.
Last night B's mum emails me and says they can't accept the invitation (
she already has) because B's godmother is visiting tomorrow and sorry for the late notice.
I'm Pissed off and sad for DS who will be really disappointed. Normally I'd politely reply that it doesn't matter but it does. It's only a two hour party in our flat and the local park. I'd have happily accommodated B coming for only part of it. Her email was cold and formal and I don't feel inclined to reply. AIBU?