Divorcing Your Wife in MCA
Solution 1:
Go to a priest and click on it, then click the top-right button and then click divorce. If you don't have a priest, the only way to divorce her is to kill her.
Solution 2:
You have to go to a priest or priestess and click the SPECIAL button.
There is a divorce spouse button, click that. Once you do, your prior spouse is going to be mad at you.