Looking for some guidance about balancing forgiveness and honoring my parents

Hi everybody, any input on this is appreciated. I won’t go into the specifics of the story, but my mother did something terrible. What she did was so bad that I refuse to see her and refuse to let her see my children for fear that something similar will happen again. Not unforgivable if she would just show some acts of contrition by taking steps to ensure this doesn’t happen again, but although she admits what she did was wrong she insists that she had no choice and that the ends justified the means. She says that one day I will come to see it her way and accept that she was only doing what needed to be done.

How do I balance my responsibility to honor my mother while also not being obligated to offer her mechilah due to her refusal to be sorry?