Unfortunately, many women slim down for the wedding and if they're divorced they're probably eating more...
While most women gain wait shortly after the wedding is over, most women also lose a bit of weight after divorce (they are reentering the market), so the wedding dress is a good gage.
it happens to me a lot... but luckily, every problem my electronic devices (pc, phone, tablet...) may have, instantly stops at the mere presence of my wife. They must have a sort of proximity alert.