The husband probably didn't have the foresight to predict how the wife would look in 20 to 30 years' time.
I wouldn't be surprised if, at the time of courtship, the husband behaved like a typical beta sinkie, carrying her handbag, buying her expensive dinners, fetching her to and from work and romancing her at Sentosa and Elizabeth Walk before paying for an expensive wedding at 5-star hotel .... WITHOUT REALIZING THAT he was toiling for a LEASE that was to be shorter than your HDB lease.