When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
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As a rule, 66 percent of people keep their eyes closed while kissing. The rest take pleasure in watching the emotions run the gamut on the faces of their partners.
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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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One in five long-term love relationships began with one or both partners being involved with others.
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Men fall in love faster than women do.
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A man is more likely to get a woman's phone number if he is accompanied by a dog.
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