Wow! What a story that made the hairs on the back of my neck stand on end!
Told with perfection and evil, it creates increasing anguish until the macabre end.
You left her no alternatives. with iyour relentless and naughty psychological argumentation.
So, it's no use saying "at that moment she should..."
As time moves very slowly for her, when she finally comes to an end, I mean, to be freed, she will be a young woman who could be another character from one of the galaxies that you will yet create.
But there may be a shorter solution: remember that tear that slowly have appeared in the corner of her eie? It's going to fall, hit her hand that's not holding the phone and... Záz!