Labour of love
Married women lose that loving feeling faster than their husbands do.
Researchers tracked the feelings of couples every 30 minutes for ten days, with participants ranging from two-year engagements to 20-year partnerships.
They identified the amount of love felt for partners over time and discovered that, after three years, women had 55 per cent less.
But the equivalent fall among men was only nine per cent.
The study, in Psychological Science, also found that women in longer relationships spent more time doing chores and cookery, while their partner spent more time relaxing and sleeping.
Experts say this could be why female feelings are