Booked a weeks holiday with my 7yo son (I have more AL than husband). We've got a week away at the start of the summer holidays I was looking forward to.
Sent a message to the family group chat saying 'first solo holiday with [my son] 🥳' thinking nothing of it. Mum asked where I was going so sent her a link to the hotel.
She's now booked the same holiday (solo room). Sent me a message saying was it ok (i'm working and can't respond straight away...but I would have said it's my first mum and son solo holiday and was looking forward to it). Before I had the chance to reply she booked it.
She fucking booked it within 4 mins of sending the original message.
Now here's were the AIBU part comes in. I want to ask her to cancel (she will lose money on this). Last year she joined a week away with me and my son and completely ruined the holiday. I don't want that to happen again and I can't bear the idea of no buffer and her being with us for a week in the same hotel. We have separate rooms but she won't leave us alone I know that.