Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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The average person will go on a date at least 100 times before they finally marry.
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A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
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In 2010, Gary Richmond was beaten into a coma. He woke up with amnesia and no memory of his wife of 20 years. Subsequently, he ended up falling in love with her all over again!
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Two in five people in the world marry their first love.
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Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
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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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