One in five long-term love relationships began with one or both partners being involved with others.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
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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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The left ear is more responsive to words of love and emotion whispered into it than the right.
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8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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Men who kiss their wives in the morning live five years longer than those who don't.
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