One in five long-term love relationships began with one or both partners being involved with others.
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People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
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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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'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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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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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 will go on a date at least 100 times before they finally marry.
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