One of the families in our friendship group at primary school has organised a weekend away next year, partly for a birthday but also just to have a fun weekend away. It was an invite to some families 'we're doing xxx. We'd love you to join'. The parents going share an outdoors hobby which we can do there, and the suggested venue only has a certain number of beds, so that was pretty much that.
Another couple - also in the friendship group - had talked about us all doing a weekend away at some point but haven't been included. The organiser knew about this as they'd both discussed it a bit, and even talked about organising it together at some point. I know they're going to feel massively hurt, and would probably have assumed that if anything was ever organised that they would have been included. I know how I would feel if I was in that position. I would think 'oh all my mates have gone off on a jolly and I've been excluded'. I wouldn't care about the hobby bit (this couple aren't involved in the hobby) ...it would just feel rubbish.
It's not my business to say anything to anyone but its making me feel anxious. They will find out, for sure 