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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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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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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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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When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
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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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When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
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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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