SD (early 30s) lives at A and is going on a self catering holiday with her BF for a week to C. We live in between at B and were going to join them at C. Plenty for us to do at C and the plan was do somethings together and some apart - not a joined at the hip situation. This is no longer possible as DH is quite unwell. His health is declining due to various long term conditions and he's increasingly poorly. We last saw SD at Christmas and see her 2-3 times a year, often at Easter. I have suggested she and BF come via ours for one night to see her dad. We have ample room and there are no complicating factors like access to the rental or grandkids. SD and BF drive. It would mean SD loses one night of the holiday at either the beginning or the end of the holiday. She has replied it's 'not possible' but they hope to be up to visit later in the year. I've just replied to the effect 'Yes, fine, smiley face' and have no intention of bringing it up again. I feel a bit hurt on behalf of DH though. It's definitely not what I would have done in similar circumstances and I can't believe she is not making more effort. DH is not terminally ill but the condition runs in the family and he is not going to make old bones. AIBU?