Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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Twenty nine percent of women spend more time shopping for shoes than they do looking for a life long mate.
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In 2012, a Chinese man named Xiao Fan had a dress made out of 9,999 red roses for his girlfriend and then proposed - 9 in China means forever
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Couples' personalities converge over time to make partners more and more similar.
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Wearing red increases attraction.
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One in five long-term love relationships began with one or both partners being involved with others.
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