Actually, does the Torah not state that if the husband finds something unseemly in his wife he should give her a GET? And if she remarries, and her second husband hates her and divorces her, she cannot be re-married to the first husband. Check out Devarim Perek 24, Pesukim Aleph and Gimmel.
oomis, I feel this is important issue that necessitates an answer. Unseemly does not translate into unloved. One cannot live with a spouse that nausiates them, this is probably talking about unhygienic habits that a wife has. I mean you do have to live with a spouse after all. In any case, it doesn’t talk about love.
Hate also can be caused by a variety of reasons, notably a schlechta, mean, selfish wife. Nowhere does it say if one doesn’t love a wife, or vice versa for that matter, they can divorce.
Love in the way it’s thought of today as an instant soul connection between two people is elusive for most people. Can everybody be a billionaire? Is everyone drop dead gorgeous? The key to happiness in marriage AND in life is being satisfied with what we have, including our spouses.