Erotomania is a type of delusion in which the person believes another person is in love with him/her.
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Couples' personalities converge over time to make partners more and more similar.
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The average person will go on a date at least 100 times before they finally marry.
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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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Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
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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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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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