How Not to Get Eaten by a Cat

Dr. Berit Brogaard: What is one of the main reasons relationships fail?

Neha Gajwani Season 1 Episode 3

What is the one of the main reasons why relationships don't last? Are people in arranged marriages better off? Will you ever biologically feel the high from the beginning of a relationship later on? If we're drawn to opposites, and that causes relationship issues, what is the best way to change ourselves? 
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