One in five long-term love relationships began with one or both partners being involved with others.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
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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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Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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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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Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
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