My dad and his brother don’t get on, when my Gran was diagnosed with Dementia my dad spent so much time organising care/clubs/power of attorney for her. Then when she had deteriorated and was in the care home he’d visit her weekly.
On the other hand, my uncle used to go to my grans (when she lived in sheltered housing) and ask for a “loan” of money and even swapped his tv with hers cause hers was better When she died a few years back he gathered everyone round at the funeral and made a speech purely to have a go at my dad. Was expecting fists to be flying but my old man got up and walked out, being the bigger person and all that. (Also one of his daughters couldn’t be arsed turning up to the funeral but was quite happy cashing the cheque for what she had been left in the will).
I’ve not seen or spoke to my uncle since that day. He messaged me on Facebook a couple of weeks later asking if I fancied going for a few pints but just ignored his message.
Everyone else in my close family gets on pretty well, parents are still together and I see them regularly and I get on well with my sister.