Sorry about the length of this one. I used to be on great terms with PIL for the first 8 years but things have deteriorated since I got pregnant with DS (first GC for them). At first I tried my hardest to get things back on track by involving MIL in DSs life - asking her over for visits or to babysit even if I didn't particularly need her to. However it was never enough and they always wanted more time and more alone time with DS. Over time they became extremely passive aggresive and rude towards me so I backed off and stopped these invitations and also accepted fewer of theirs as I was uncomfortable around them and starting to worry myself sick over it. I've found not seeing them as much makes me far happier and I don't obsess about the situation anymore - out of sight out of mind.
The problem is my DH is useless at keeping in contact with them. Utterly useless. He's an introvert and just can't be bothered to make any sort of effort even though they've done a lot for him over the years and he does love them dearly. They live 10 mins away and he sees them with ds about every 3 weeks on average (often with me but sometimes I leave them to it as it really is uncomfortable to be around them now). I know they don't think this is anywhere near enough and I know they think I'm somehow limiting the contact which is not the case. This year he's completely missed his mums birthday despite me reminding him, didnt respond to their calls/texts asking to see ds for his first birthday and didn't see them for his milestone birthday (didn't even thank them for the card/gift they sent him which I repeatedly asked him to). Usually I would arrange these things as I'm the more thoughtful of us but I've taken a big step back due to how upsetting I've found PILs behaviour. PIL think this sudden distance is my influence and that I'm not allowing him to see them or talk to them. He has told them this is not true but they don't believe him (confirmed by SIL) and theyve started to send him gushing texts quite often - things like we love you son and we're always here for you xxxxx
FIL has a milestone birthday coming up. We have been invited along with SIL and her DP. They don't really have anyone else in their lives as they're quite bad at keeping in touch with family (apart from their DC) and don't feel the need for friends (his mum openly stated she doesn't like other women once). DP isn't bothered about going and says we probably won't....I know I'll get the blame for this but that's not the reason I think we should go. I think DH should make the effort as they love him and have done so much for him and DS. It makes me sick to think my own son would do that to me when I'm older (although I wouldn't behave as they have). On the other hand I'm half thinking it's none of my business and I should just stay out of it. I don't owe them anything and I certainly won't get any thanks for it. I'm also heavily pregnant with DD1 and don't won't to add to my stress levels.