Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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Couples' personalities converge over time to make partners more and more similar.
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The average person will go on a date at least 100 times before they finally marry.
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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
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In 1999, a fisherman found a love letter in a bottle from a soldier in WWI. He returned said letter to the now deceased widows 86 year old daughter.
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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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The left ear is more responsive to words of love and emotion whispered into it than the right.
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