After a divorce many people express their hate or disgust for the ex-spouse. They may rant at length about what a bad person he or she is and how terrible it was to have been married to them.

This is wrong, unfair, and it reflects poorly on the speaker.

After all, this person was good enough for you to date for a certain length of time and then to marry. You did see whatever you saw in the person and you felt that the person was worthy of your companionship. Nothing really changed about the person. Perhaps the person did some things that meet your disapproval but the person still had been worthy of marrying.

Your extended ranting about the evils of this person is a poor reflection on yourself. It means that you made poor choice and for you to go into great detail about issues that should remain private is not to your credit.

There is no reason for you to hate the person whom you divorced or from whom you are separated. The person has many good traits as you know and unfortunately despite all of the issues that drew the two of you together you both made a poor choice and you are now both going in your separate directions. This is bad enough and it is quite unfortunate. However, to debase the person whom you left is not befitting or appropriate.