In an article published this week in Business Insider, Hannah Fry, a math whiz who
works for
at the UCL Centre for Advanced Spatial Analysis in London, breaks down happily ever after in this formula, developed by another mathematician based on research
at The Gottman Institute: The longest - lasting couples felt they had more positive interactions than negative ones on a daily basis, while those with the least longevity
generally feel their negative interactions
are more common than
happy ones.