Is there something to the 7-year itch turning into the 3-year itch in marriages today?

Is there something to the 7-year itch turning into the 3-year itch in marriages today?
My thoughts on this are that we as a society are moving so much faster than in the past. Life is speed, especially in urban areas. Many people are rushing into marriages and even relationships based purely on convenience rather than compatibility or even true love. Just my two cents but yes I agree that there is something to it.

My thoughts on this are that we as a society are moving so much faster than in the past. Life is speed, especially in urban areas. Many people are rushing into marriages and even relationships based purely on convenience rather than compatability or even true love. Just my two cents but yes I agree that there is something to it.
Thank you.