Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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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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The single biggest predictor of love is proximity.
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A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
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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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Raj from the Big Bang Theory is married to Miss India.
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'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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