I stopped reading a cozy culinary crime series where the heroine was becoming unlikable, and the narrative kept insisting that her wish not to investigate a murder where she had tripped over the body of her abusive husband's new girlfriend was a flaw, as stated by the heroine's son. The narrative was far far more forgiving of the abuse than I was.

Also there are characters who are supposed to be so likeable that they cross the border and I am just more interested in the hero's morally dubious estranged legal father. (Different series)