This is why I would never EVER in a million years, get bailed out by family or friends. You are beholden to them for life, even if you pay it all back.
My younger DD's friend was supported somewhat through uni a decade ago, her parents paid her rent on halls for the first year, and the room she had in a houseshare for the second 2 years. (And they paid for a few other things as well.) And they still bang on about it like they gave her a kidney/saved her life.
She has regularly said she wishes she could pay them back as they still keep whittering on about it, and is working hard now (lots of hours in 2 jobs) to raise the money to give them back the £16-17K that they forked out. Nice to support your young adult children financially (or anyone) if you can, but don't hold it over them. That's nasty, manipulative, shitty behaviour.
Re; the nosiness @FancyFran My good friend Heidi has a disability, and hasn't had paid employment since she was about 47. (Now 53.) She has a 'friend' called Anne, who lives near her who is a couple of years older than her who she met about a year and a half ago when this woman started the same hobby group.
Anne is OBSESSED with trying to find out why Heidi doesn't have a job/doesn't work. Heidi has said multiple times that she is retired (she is - on medial grounds!) and Anne isn't accepting that and keeps grilling her to the point of giving her a headache and causing her real stress. Heidi's husband Pete has a NMW job for 30 hours a week, and Anne 'just simply cannot fathom' how they survive on his wage. There is nothing for Anne to 'fathom.' it's got fuck-all to do with her.
Anne will just stare at Heidi, and say 'so let me ask again... how on earth do you and Pete make ends meet? There's no way you survive on his 30 hours a week at Tesco!' And 'I can't help but ask... will you EVER work again? No-one retires at 47!'
Same questions over and over and over, to the point where Heidi has left the hobby group she went to twice a week, and is trying to give Anne a wide berth.
Fucking weirdo! Just obsessed because she hates working, and cannot 'fathom' how Heidi can manage to not work, and still survive! Well for a start, Heidi doesn't have a £175,000 mortgage that she only took out at the age of 49 like Anne. She is mortgage free. Anne has no choice but to work, and it bugs the hell out of her that Heidi can afford to not work. (As I said she has a disability and finds work hard anyway, and that's why she retired on medical grounds at the age of 47 after 30 years of work. As I said, it's fuck-all to do with Anne though. Or anyone!)
tl;dr as others have said, just make something up. Tell one person £17K and other £77K. As a pp said, if they don't gossip they shouldn't know that you have told them all different amounts! If they DO say 'you told us different things' just say 'yes I did because I knew you would all gossip. Now quit asking because I am NEVER going to tell you!!!'
nb: not real names obviously.....