Erotomania is a type of delusion in which the person believes another person is in love with him/her.
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For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
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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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When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
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Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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