OK, sorry, this is a long one.
My parents both turn 70 this year, so we, the three sisters, me, MS and LS. decided to put on a weekend for them.
LS and I have basically done all the work, but are happy with what we have planned. Day one, Tate Modern (LS, me, DP, parents), posh pub dinner, Globe theatre. Day 2, LS, and mum service at st Pauls, tea at the ritz , Dad, me and DP and MS''s ex, father of the grandchildren, 4th day of the England v windies test at lords, (dad has never been), meet at a pub in a mutual situation for catch up afterwards.
MS was supposed to come to day one and day 2, but has now pulled out as she apparently has to go to a wedding of a distant relative of her new boyfriend (for the interests of truth, she has been trying to insert him into the family but even according to her timetable of them getting together which none of us believe) she is only attending the ritz bit and so will not see my dad all weekend. Ex H , as father of the kids is totally part of the family, and am happy to see him at the cricket, and he is working round the train stuff, which she initially used as an excuse.
LS and I are furious, as it should be about the parents, and apparently mum is already upset. The deal is that we three split the costs of all the parents tickets, meals etc, but I expect she won't. AIBU to think that she is the most selfish person Ive ever met?