Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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40% of people who are rejected in romantic love slip into clinical depression.
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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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The average person will go on a date at least 100 times before they finally marry.
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A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
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The single biggest predictor of love is proximity.
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