Parents receive 1 out of every 5 Valentines.
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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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Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
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Two in five people in the world marry their first love.
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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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The left ear is more responsive to words of love and emotion whispered into it than the right.
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A man's beard grows fastest when he anticipates sex.
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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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