oh my gosh I think my heart broke a little. Harley....

I don't know if it's part of your ongoing plan for her, but Haruto himself would, seeing her and hoping to help her, possibly try to do the thing he did here to Nitou to her, to try and help with fighting the Capitol re-programming. It can't completely undo it, but it can possibly lessen the intensity. That something you'd be down with trying? If not, then the battle can easily just be way too chaotic for Haruto to find the chance to do it, and a regular kind of fight ensues.