Actually possibly more than mildly?
My adult - late 20s - DS and his girlfriend live in our house as lodgers (have kicked independently then come back so not childhood home, and my DP only came on the scene when DS was an adult) but we run along and do family Christmas etc, and live as adult house sharers but with the family bond IYSWIM.
Anyway, they tend to keep themselves to themselves mostly, we all work various jobs / shifts and catch up in the kitchen etc so no pressure on either side to be in each others pockets.
However, DDILs birthday is coming up shortly so I just rang DS to see what the plan is, to be informed that they are going away to her parents two days before the birthday for a week - they are leaving on Friday. Which is not a problem at all, in fact she's hardly seen them over the pandemic due to parental vulnerability, and I'm really glad they are going, it'll do her the world of good.
My AIBU is that this was told to my DP who had the retention capacity of a fecking goldfish, which my DS well knows, and of course wasn't passed on to me, for which my DS has apologised. I may have been a bit snarky in my "good humoured" and surprised response, but it's not the first time this sort of thing has happened and for some reason it's just made me feel a bit sort of irrelevant....
Don't get me wrong, they are adults and I have no wish to control, influence or interfere in their lives, but as adults all living together, I think it only polite to inform when people will be away for an extended period, especially as they have animals which will become my responsibility- again not an issue but I like to factor things into my routine.
I probably am BU but for some reason I just feel I'm always the last to know.....
It's fine, I'll give my head a wobble. It's probably hormones anyway.
Meh.