Long story short- DH has a sister who has been unwell recently. To give her a bit of a break we agreed she could stay over on New Year's Eve with her daughter.
DH has now asked her to stay for 3 nights (without discussing it with me) and she has accepted.
Relevant info- She lives 10 minutes drive away, so it's not like it's not worth her while coming for one night. Her daughter and our daughter don't always get on, and when they are getting on they wind each other up really badly and both end up overexcited. I suffer with anxiety and depression. However, I do genuinely like DSIL, and want to spend time with her.
So firstly, I don't think it's a great idea putting all of us together in a small house for 3 consecutive days and nights. There's nowhere you can go to get away from each other. Maybe in the summer when you can get out and about more, and use the garden.
And secondly, I'm pissed off that not only did he offer the 3 nights without discussing it first, he didn't even tell me after the offer but the first I hear about it is when we are at SIL's and she mentions it.
So AIBU and a control freak, or is he the unreasonable one?