Mo, it is going to hurt. wally is right.
Affirmation that everyone understands would be comforting. but he will have been saying "Mo blows all the money, if I give her more its like a bottomless hole, she gets into debt. She is trying to screw me over" After all socially he is known as a great fellow who gets in the drinks....
I agree with PP also, that if some of the "friends" shut down; the moral high ground is the way to go, smile & say, you understand them being neutral & your own snake pit is your own to handle. & living on 89p pp der day is not trying to screw him over
For what it's worth, My brother had a miserable split up with my XSIL, He was monstrous, unpardonable, but I never knew the whole truth & probably don't to this day. However he is my brother, & I had to accept he wasn't perfect. It never stopped being friends with XSIL, things went quiet for a while, but now we may even be going on mad exotic holiday at some point, (as for my new SIL, she is, how shall I say ? errrr.. OK, but I would never go further than the pub with her !)