The single biggest predictor of love is proximity.
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As a rule, 66 percent of people keep their eyes closed while kissing. The rest take pleasure in watching the emotions run the gamut on the faces of their partners.
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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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Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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Erotomania is a type of delusion in which the person believes another person is in love with him/her.
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