'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
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When dragonflies mate, their tails form a love heart.
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Raj from the Big Bang Theory is married to Miss India.
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Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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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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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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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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