We are just on the way back from a cottage holiday with DP and the PILs. We booked it with the PILs and due to limited availability we ended up with one spare bedroom. We knew the cost and were happy to pay as th cottage was otherwise perfect.
At the last minute DPs cousin asked if they could come. Obviously enough room at the cottage and there was also no room in the car so no problem. The cousin is a really nice lad.
Cousin contributed to the shared costs etc during the break. We did not formally ask for a money towards the cottage as we had paid anyway but I had hoped he may offer to pay for a meal as he got a v cheap holiday. He is earning a decent wage (more than me and lives at home!) so money not an issue.
So we all left today and he did say thank you but that was all. No gesture or contribution. Given we had already paid for the cottage and not asked for anything AIBU to think he could have made a gesture of thanks?