In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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One in five long-term love relationships began with one or both partners being involved with others.
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Wearing red increases attraction.
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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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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8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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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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