I will try to keep the back story short. DH has a 23 year old son who is clever, able and charming but doesn't behave well towards us. He lives abroad and his pattern is to go out of contact for ages (sometimes months) while DH gets incredibly worried imagining him in hospital/prison/dead; then gets in touch when he wants something - nearly always money, sometimes practical help as well. He says it's a loan and will lay us back, then goes incommunicado again. DH usually says no immediately, pointing out how much he owes already, but then agrees (and yes this is a major part of the issue).
This last weekend DSS visited at a few days notice, bringing four friends as they were all competing in a sporting event near where we live. He asked DH to pay for his transport and said he would pay us back when he got here. However one of the friends told me that the team has sponsors who gave them money for their transport in advance. I suspect that they got money for accommodation too which they saved by staying with us - which would be fine, if that was explicit.
DH asked DSS for the transport money and he stalled until he was leaving, then said he had left it on the table in the bedroom. There was no money there. DSS said one of his friends must have taken it
by accident! DH said your responsibility, pay us back in the next two days.
I clearly don't know for sure but suspect he never left any money. He does have form for lies and sneakiness but this has really riled me. I don't care about the money, wouldn't mind paying his transport whenever he comes to see us, but do mind being used as a free hotel. I am sick of seeing my DH, who loves him dearly, worried sick about him and having DSS break promises to keep in touch. DH split from his mother when he was 12 and feels guilty that this had a negative impact on DSS, and blames himself that he isn't more sorted - but this translates into letting him take advantage repeatedly. I really want to draw a line somewhere so that this cycle doesn't continue indefinitely, it's no good for anyone. Am considering saying that DSS is not welcome for Christmas if he doesn't repay the money. AIBU? Or can you think of a better course of action, I am sleep deprived and hormonal with new baby so probably not the clearest thinker at the moment!
(Not very short after all, thank you for reading)