Not so much an AIBU but posting here cos more traffic methinks.
This Xmas day, we (me DD, DS - 14 and 19) are going to DP's house, where he will have his 3 DS's over to stay.
The oldest DS (16yo, we will call him Fred to avoid confusion) is a 'new' member of the family - DP fathered him unknowingly, it was a one night stand and the mother didn't tell DP until she was 6 months gone. She wanted to bring Fred up on her own (has a well off family so that helped) and DP went along with her wishes, which were not for him to be involved in the child's upbringing, though no hard feelings present.
In the meantime DP got married, had 2 more DS's, (now 10 and 12yo) and got divorced a few years back. We have been together 4 yrs and live separately.
This summer the mother got in touch with DP saying Fred wanted to meet his dad, and consequently they spent some time together this summer. DP is over the moon to have Fred in his life and obvs they have had some catching up to do.
So far, so good.
During Fred's visit we all went to stay at a member of my family's holiday home, us grown ups, DPs 3 boys and my DS. The day we were leaving, my DS (Let's call him Ernie) came and told me that he had seen Fred putting items from the household into his suitcase. I quietly mentioned this to DP and he went to investigate. DP returned, assuring me that his boys had explained what was happening, they were playing a game where they pretended to steal things from the house and put them in their suitcases, meaning to return them to their places later. Ernie had misread the situation as he was not included in the game.
I myself witnessed Fred still playing this game 20 mins later, and asked him to put the item back.
The subsequent atmosphere between Fred and Ernie was not v good, but Fred's stay was almost over so we tried our best to forget it.
Now xmas looms and Ernie is not keen to spend any time with Fred, who will be spending his first xmas with his dad. In fact Ernie is quite distressed about it and would prefer to stay home alone than go there. We will have the good company of DD who knows the back story and will keep an eye on them, but ...
what do you think?