First time I've done this so sorry if it's too long....
DH and I don't have any family nearby - the nearest are my uncle and aunt who live in the countryside and were always really welcoming and I used to stay with them for weekends occasionally when I was single. When I met DH, we used to also visit and we felt really close to them, especially as they're a lot younger than my parents. Their DD was a bridesmaid at our wedding and my parents and I made a big fuss of her too with birthdays etc.
However once our DS was born it's all gone a bit pear shaped...first thing was they pulled out of our small family Christening on the day with what I felt was a lame excuse - even though they hadn't seen him at that point. As they didn't come to us we travelled to them when he was 8 months and my Uncle made it clear he thought we were totally fussy parents because we wrapped him up warmly for a country walk when it was really cold and lots of other little things like that. It was clear he had no interest in DS at all. He even said something along the lines of that other children are boring apart from your own. Then they took us to a terrible lunch at their friends which was really formal and not suitable for small babies at all - the hosts had expected us to leave him on his own (next to an open fire) in the sitting room for the whole lunch which was several hours long. I felt my uncle and aunt had been a bit thoughtless as they obv hadn't considered us or DS at all - we wouldn't have gone to the lunch if we'd known how formal it was. My Uncle had to be prompted to say goodbye to DS when we left after the weekend.
That was more than a year ago and the only contact we've had is swapping Xmas cards.
My DH, who is an optimist, wants me to contact them again and arrange to see them and thinks if we visit again they'll be better. I'm not so sure. I completely get not everyone is fascinated by my son, I really do. But shouldn't relatives who you were close to make a bit more effort? I feel they've been rude and selfish - or AIBU and PFB? I feel they expected everyone to care about their daughter (who ironically they spoilt rotten) but can't be bothered about anyone else. It's upsetting though as I used to feel really close to them. I guess we were more fun when we were child free!
I think my Uncle just pleases himself. He was making a rare visit to my home town last week and called in on my sister, who was about to visit my DM (his sis) in hospital where she is a long term patient. He went with her, but it sounded like he wouldn't have gone if Dsis hadn't been visiting and he hadn't tried to contact DM.