AIBU extra guests at party?

[Mummabearof2]

Long time lurker of posts now needing some perspective!

I am hosting a surprise party soon with both friends and family invited. I have invited 1 family, mainly out of duty, and did not expect them to come. The party is some distance from their home and they rarely see us. I have been told through another family member that the family are coming and are bringing their sister's family too. The sister is not family nor friend and I have only met a couple of times in passing.

I fully expect my judgement may be clouded as we don't get on particularly well with the invited family anyway, but inviting them was the right thing to do and I always wonder whether each meet up is going to be the one where we all get along.

I have been told that the family and the extra guests will probably stay apart anyway. That makes me feel a bit used and that they aren't coming to celebrate the occasion but to have their own jolly at my expense. The extra guests live nearish to the party venue and as the family rarely see them (probably on par with how often we see the invited family), that is the reason they have been given an extended invite. None of them have actually spoken to me directly.

So, AIBU to feel cheesed off at the extra guests?! Or do I just need to be a bit more hospitable?

[flumpybear]

Glad you've sorted it but that's very cheeky of them!! Asking is a little cheeky, unless it's perhaps a significant other but assuming four relative strangers isn't on

[Itsaplayonwords]

I can't believe people actually think this is acceptable behaviour! Good for you though for putting it to one side and not rising to it. I hope the party goes well.