I will base my answer on a survey of 2,262 adults in heterosexual partnerships over the course of five years where Rosenfeld found that... https://nibernet.com/question/who-are-the-major-instigators-of-divorce-in-marriages-husbands-or-wives/

most cases are the ladies... FACT. take a look at most celebs, Tiger woods and others... obviously because of what they stand to gain

Ladies most times, they instigate it when they can't stand the cheating anymore......

Ladies instigate it more...

Marriage is just a status for most men, they still go on with same lifestyle, body, friends, name, job, work hours...etc.

Same can't be said for women.

So, a man will easily seek distraction or happiness outside. A woman won't even have that luxury of time or resources.

It is better she ends it and moves on with life, rather than remaining tied up with a married bachelor.