My partner lives in a flat owned by me, doesn’t pay rent, and contributes 50% towards bills and food, cleaner etc. we are in London. This is all in all about £800 a month of his 6.5k a month take home salary. However he never pays me on the 1st of the month meaning I have to fund his share until he gets paid in the middle of the month. If he were living alone he’d be paying least 3x what he’s paying in rent and bills. He calls me stingy and money obsessed because I want him to pay on time so I can also manage my cash flows better during the month and not have to dip into savings waiting for him to pay up. Is this unreasonable? We split everything 50:50 and I feel he’s saving at my expense and also doesn’t even want to pay on time.