Should have double checked with us before booking a holiday over Xmas???
I mentioned it to DH earlier & he didn't really say much & later after a drink accuses me of bitching 
Back story...
SIL & BIL live much closer to MIL than we do, SIL also works part time, has her own transport, no kids & far wealthier too - that said she does generally do a lot for MIL.
Every year we have MIL for Xmas, sometimes them too, though in fairness MIL doesn't usually want to eat Xmas dinner with us - but a lot of that is down to with her not liking the times we want to eat & us not wanting to do the Santa thing & then have to have a full roast dinner on the table by 12 when she insists she must eat, so it's generally been Xmas day or Boxing Day buffet tea - some years it has been SIL & BIL too,
All fine, I like to cook do no real big deal for me.
But it's been EVERY year since before I married DH - I haven't really minded BUT this year I lost my DM & had for the first time initially intended to go up North to spend Xmas with my own family as its the first one without DM -
I had wanted us all to go, but then a bust up with DB & him manipulating my DF onto his wave length has meant that wasn't going to happen.
My DM was ill & in hospital for a several weeks before she passed & to cut a long story short, for obvious reasons we didn't bother with a family holiday this year, me & DD & sometimes DH too spent the summer up there with them.
I had thought as we are now not going up North for Xmas & DD is now old enough for Santa not to be so important, perhaps I would look into us taking a family holiday over Xmas instead.
Lunch with MIL on Sunday, she asks what we are doing for Xmas as SIL is away on holiday
SIL hasn't asked our plans, doesn't really know about the bust up with my family, but knows I lost my DM 2 months ago & also knows we didn't get away on holiday this year.
MIL is frail & very ill, so needs either us or SIL within reasonable reach of her in case she takes ill as she has done several times recently - SIL has even commented on not expecting her to last many more Xmases.
They have several holidays a year, which is fine, they can afford it, their business - but AIBU to think that THIS year she is taking the pee just booking & going at Xmas without at least discussing it with us & checking our plans first ???
I feel pretty miffed, it's not MILs fault, she's lovely, if a bit of a character at times, but we now can't go away, so surely my commenting isn't bitching
but justified ??
AIBU ???