I do not believe guys attached themselves out of pure logic so, I'm not understanding what the point is?
Anyone male or female can get attached without logic if emotions is the driving force.
We have been taught a long time to follow our hearts or our emotions... We have been told the fairy tale and not the day-to-day life that we will have to live with a partner.
And there's always a reason that somebody either marries or leaves it may not be the best reason in the world ,but there's a reason ,it could just be their own selfishness or it could be something the man is doing and doesn't see.
And yes that can work in reverse, too.