Back story, I'm a kiwi and left there 15 yrs ago, married a Brit and have settled here - all good.
Have been home a few times for holidays before having dcs.
We haven't been out there as a family at all with the dcs and this year at the beginning of the year my mother asked both my mum and dad could stay with us for Christmas for 2 weeks, they have never met their grandchildren but skype regularly so this would put first Christmas all together on my side.
My younger sister (26) started to make noises of 'I'll be here on my lonesome etc' (she had been to the UK before as I paid for her to come over a few times before so we could see each other over the years) so not wanting to leave her out and quite swept up in the excitement of having all my family here for the dcs I invited her to come and stay too and offered to pay for her flight, she accepted.
This was back in Feb this was arranged, she has now sent me an email 'Looking forward to being over at Xmas, especially NYE - it's going to be great in London.'
We live in the South (Dorset) however not near London and we had no plans to go up there. So I replied back with 'It'll be lovely to have everyone here, however I'm a bit confused about NYE and London ?'
Short story she had planned on staying with is Xmas Eve and Day then on Boxing Day was going to go and meet some online friends who she has been chatting to since March (met them through an online game) she wanted DH or I to drive her to Portsmouth where friend number 1 lives, and then party with them until the 2nd of Jan then have either DH or I collect her from Brighton that day.
She'll only be here 2 weeks, AIBU to tell her to bugger off ? I feel like I am funding a jolly holiday for her to go on a piss up. I know I don't own her but I'm feeling really hurt about it all.