Briefly - DS is 31, lives on quite generous benefits as he has MH problems but he's ok.
Regularly he runs out of money. He borrows from mates, they borrow from him etc. Sometimes he borrows from me. However, the last two occasions recently (and in the past) he has borrowed and not paid me back, despite reminders. I work, I can, within limits, afford to lend him money. However his rent etc is paid for him whilst I have a mortgage etc and support my DD at college. He owes me £70 from the last two times. I've had a text asking for a further £120 to pay for something for his car.
I feel like saying no, I'm cross that he hasn't paid me back for the last loans but this pushes his debt up to almost £200 when I'm thinking ahead to Christmas etc and I have ongoing housing costs due to repairs….
If I say no. AIBU?