AIBU to be cross that my husband's aunt has told another member of the extended family the bbq I've arranged to host for his side of the family will be held at theirs (not ours)
I'm the one that had the idea, that has found iut peoples' plans and sorted a date that everyone is available.
The aunt hasnt spoken to my husband or I about offering to host she's just told them they'll be having it at their house.
Never once did the aunt say in the conversation with me/us that's a great idea be lovely to get together but we will host it.
It's just come 3rd hand