My inlaws have gone on a big, exotic holiday for my mil's special birthday. It's been planned for ages, over a year at least and they were keen to tell us about it as they were naturally excited. But they've just put some photos on social media and my sil and partner are with them.
My husband is not a jealous person at all, he gets on with his sister and there's never been any rivalry between them. I'm not sure if my inlaws think they'd be seen to be favouring one over the other. From my perspective, I just think it's odd to keep quiet about it but maybe that's unreasonable to say?
It's not that we would go on that sort of holiday anway as we've got young children and it wouldn't be practical. Sil doesn't have children. So of course our circumstances are different and we would never expect to be asked.
However, Dh and I are aware that the inlaws possibly prefer hanging out with sil and her partner to us. We laugh about it sometimes because our lives are so very different. We're more humble types, normal jobs and 2.4 children, they're more entrepreneurs with high aspirations. I think they're just more exciting to the inlaws which is fair enough, we can't be something we're not. But strangly, there have been a few big things inlaws have done with sil they have kept quiet about until it's put on social media.
Also, we do see dh's parents quite regularly so it's not like we don't have the chance to chat about what we're all doing. Dh has said that he sometimes feels like his parents see us as more of a chore because we have a baby and toddler. I get that seeing us will be different to sil and of course it's fine if they do want to do more things with them than us but I don't get the secrecy around it.