Bit of background: my dad has Parkinsons (diagnosed 5 yrs ago) but generally he is able to live day to day fairly normally. He doesn't drive but is still pretty active, goes for walks, goes on holiday etc. He has a very supportive partner who drives.
They live 1 hours drive from us and ever since his partner's kids had children 10 yrs ago, my DDs and I have been put on the back burner, I feel. We see them about 4 times a year and making any arrangement is so complicated. However they seem to see his partner's kids and their children more often and they live further away. He acts like he doesn't care if he sees us or not and is always putting off making any arrangements. His partner doesn't get involved at all. He's also very abrupt with me, ie. I arranged for us to stay the night this weekend but then realised I had to work and his reply was "that's ok, I wasn't looking forward to it anyway". I think this was his way of saying he was worried he wouldn't be well when we got there (not really any reason for our visit to make him ill other than he does get anxious from time to time). He also says I should make an effort to talk to his partner if she answers the phone when I ring but EVERY time she answers and realises it's me, she'll immediately say "here's your dad" and pass the phone straight to him so I have no chance to say anything to her. He is my Dd's only GP though she says she sees herself as a GP though she does absolutely nothing to show it except being very nice to them on the (rare) times we see them. I just feel sorry for my DDs who literally have no close family at all except me and OH. I feel like just backing off, obviously being there if he needs me but it just makes me upset when I try to arrange something and get nowhere