40% of people who are rejected in romantic love slip into clinical depression.
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Parents receive 1 out of every 5 Valentines.
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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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Men fall in love faster than women do.
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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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A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
29
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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Men who kiss their wives in the morning live five years longer than those who don't.
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