I’ve organised a day out for my dads significant birthday and invited all close family. Provided transport, an excursion, planned picnic etc. Once I’d done invites I get a message from family member telling me they’ve had a message from a family member who is not closely related and lives far away who wants to come. I check with mother, she says fine but this family member has a disabled spouse who can’t go on the excursion. So I message them saying they can come along to the rest of the day but that bit isn’t possible for wheelchair users. They are disappointed as apparently when they were told about this months ago by other family members (when it was only an idea and nothing booked) they said excursion would need to be accessible etc. Now I look terrible but I have no idea why these family members made them think they would be invited - I’ve only met this person once. So they’ve been believing they will be coming along and I’ve arranged it all and they can’t take part. I feel terrible and stressed about it. I’d never knowingly exclude someone like that but the rest of us meet often and they’re never usually invited!
AIBU to be really annoyed that I’ve been put in this position and now look like the bad guy?