So my sims new boyfriend has moved in and he is constantly mean to her for no reason. I even used mccc to turn off autonomous mean and mischief actions. He is still mean to her. He has no mean traits ...
Is he a gallery sims? Once in a while, they have a lingering original trait that you can't get rid of even by changing them. I had to make a twin and copy over the look and then delete the orginal gallery version to cure that problem.