My dh was, until the last 3-4 years, very close to his brother. They were each others "best man" (18 and 15 years ago).
BIL hasn't ever really been a good friend of mine, but I always treated him as family - the relationship is very important to dh and so I supported it.
My dh has had depression over the last 2 years, really struggled and bil, his supposed "best friend" has totally ignored it. Dh didn't feel up to telling his mum but bil - while not helping dh at all - told her, which has made our relationship harder.
The last 2 years after discussion, bil, his wife and 2 boys came to us for a holiday over the Halloween weekend. Now it turns out they have planned (even bought tickets!) to come this year without asking. I have a neurological disability that needs regular IV treatment in hospital - they plan to come the next day, when (we've explained) I'm utterly wiped out, I need 3-4 days after my IV to feel normal.
Am IBU? I've explained I can't have visitors the week of my IV. I need a real (sleep all day and night) rest and I've explained it to them.
Dh is trying to be nice to them, but he can't get the days off and I'm useful for nothing at this point. Plus, they've assumed an invitation we hadn't planned to offer this year because - surprise surprise - I had a hospital appointment!!