A relative of mine has forever been coming to the rescue of her adult kids and still does! At ages 45 & 40 she still bails them out

Mr 45 won't contact her for months but then he will turn up because he needs money to pay for a tank of petrol to get to work.

Not being in your situation I'm not sure I can say what I'd do, but I know damn well I'd not let it get to that point after seeing what the relative goes through.