Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
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Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
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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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For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
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Historically, sweat has been an active ingredient in perfume and love potions.
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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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A poll has found that computer 'nerds' make the best lovers, with 82 percent of IT geeks claiming they put their partner's pleasure above their own.
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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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