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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A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
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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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Kissing an infection-free partner is good for your teeth!
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The single biggest predictor of love is proximity.
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Speed dating was invented by a Rabbi in 1999.
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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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