The morale of story is very simple: Neither a lender or a
borrower be.
Even between spouses. If both are working, keep financials separate
- credit cards, bank accounts, personal property (priceless
collections), etc.
The only thing spouses should share, apart from living under the
same roof are: bed, toilets, sofas, mirrors, utensils!
Even handphone and laptop - don't share, hahahha!