Wearing red increases attraction.
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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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Anuptaphobia is the fear of staying single.
11
40% of people who are rejected in romantic love slip into clinical depression.
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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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One in five long-term love relationships began with one or both partners being involved with others.
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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13