Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
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Raj from the Big Bang Theory is married to Miss India.
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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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40% of people who are rejected in romantic love slip into clinical depression.
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