When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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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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When dragonflies mate, their tails form a love heart.
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The average person will go on a date at least 100 times before they finally marry.
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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
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In 2010, Gary Richmond was beaten into a coma. He woke up with amnesia and no memory of his wife of 20 years. Subsequently, he ended up falling in love with her all over again!
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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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