Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
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Erotomania is a type of delusion in which the person believes another person is in love with him/her.
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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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Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
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Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
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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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Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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