Erotomania is a type of delusion in which the person believes another person is in love with him/her.
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'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
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Couples' personalities converge over time to make partners more and more similar.
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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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Men fall in love faster than women do.
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People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
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40% of people who are rejected in romantic love slip into clinical depression.
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