What is ideal about condemning a woman who divorces because her husband cheats on her and beats her?
What is ideal about saying she cannot remarry?
How many women are you speaking of? Running off to the fringe to make a point seldom works.
In a Catholic marriage, a vow is made before God that includes forsaking all others. Let's take a look at the fringe. Each promises to love, honor, cherish. If it can be shown that one spouse clearly never meant any promise, then the marriage can be declared null and void (annulment). Wedding vows are taken seriously. Remember, these are vows one person makes to another before God. The priest is merely a witness of these vows.