Erotomania is a type of delusion in which the person believes another person is in love with him/her.
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Men fall in love faster than women do.
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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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Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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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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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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In 1999, a fisherman found a love letter in a bottle from a soldier in WWI. He returned said letter to the now deceased widows 86 year old daughter.
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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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