Raj from the Big Bang Theory is married to Miss India.
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Couples' personalities converge over time to make partners more and more similar.
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8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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Men who kiss their wives in the morning live five years longer than those who don't.
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Erotomania is a type of delusion in which the person believes another person is in love with him/her.
38
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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