Should I appease DSis so she comes to family event (even though I think she is BU)?

[IvankaTrudeau]

We've booked a surprise holiday for DF's 70th birthday.
DF and DM are going, plus my siblings and our DPs and DC etc.

DSis2 has had a sort of falling out with our DM. I think DSis2 is in the wrong (wrt to her behaviour) but she thinks our DM should be apologising to her. DSis2 now says she won't come on the holiday unless DM sorts things out wIth her.

I've tried to stay out of it, as have Dsis1 and DB. DF will be upset if DSis2 is missing (we generally get on OK, and are often all together for big birthdays, Christmas etc) but I feel uncomfortable telling DM to patch things up when I think DSis2 is the one who is BU. Also it will cost us more if we have fewer people to divide accommodation costs between (we're renting cottages).

WWYD?

Bump. Anyone?

Stay out of it it is for your DM and Dsis to sort out between them.

Agree, not sure why you feel this is your problem to sort out. It doesn't involve you. Back off.

I agree with others. Don't really comment. Certainly not your business to get your Mother to apologise even if you thought it were 6 of one and 1/2 dozen of the other, but especially as you think sister is in the wrong.

If you arranged the accommodation when she said she was coming and agreed to pay then she should still pay for her share just like any holiday.

What Hecate said.^^

I would say to her that her falling out with your Mum is irrelevant - you're all going to celebrate your Dad's birthday and her not going would unreasonably punish him.
But agree with other posters that, other than that, I'd stay out if it.

Thanks all.

So far I have gone with Hecate's plan of saying "think of DF" etc, but it is difficult not to speak my mind when she keeps bringing it up and saying "DM is in the wrong etc etc etc".

Well if she starts - just say 'sorry I'm not getting involved' repeat!

If she says she's not going say 'that's your choice, but your share is still X' It's your money to lose