Again BYM you have it wrong.
Marriage according to the Torah is so much more then a partnership.
It is a union , a creation of a unit that when working properly is a place theat the Shechinah itself makes home.
Yes it can be that one spuse is better off by ending this union becuase it did not work properly.
However it ending is a tragedy.
Every ending is by definition an operation to remove a limb, whether or not the end result is one spouse being better off.
Period.
It is one that cause’s the very Mizbeach to shed tears.
(Again I am sorry if it’s hard to join the non-jewish thought process with the Torah thought process which is completley and diametrically different.)
Edited to preserve the point