Why would she make that choice?
She probably wants to die, but is prevented to do so by people who keep her alive against her will. Probably talked about it to prime. But prime is duplicit about it, he obviously simultaenously wants her to die as she s only a pain in the ass for him, but cant say it either, which creates this highly toxic, unhealthy situation. Fact is, life is brutally cold, for one lifeform to survive, it often has to abandon another one. Natural selection. "love" ? ... well it always become exposed for what it is at some point in any relationship. An illusion at best, a joke at worst.
In the end she deteriorates both physically and psychologically and is just a number for doctors. Nobody really cares about her but those who have to stay with her until she finally die. Everyone else is too busy focusing on surviving daily to care about someone who s already in her final days. At this stage most people give up because they realize nobody really care about them as they dont have anything anymore to produce, bring to others. They let themselves die. People only care about you if they have interests in doing so, if you give them something in return. Being old, not working, slowly abandonned by your loved ones, having some money, not being able to provide sex or anything in return, you re pretty much useless and as a result drugged until you pass away.
This is why euthanasia will become an increasingly important matter in the next decade, especially in the dying west, white occidental world. The problem with euthanasia, is that doctors and big pharma make more money keeping people alive against their will in various institutions, force feeding them with drugs -which kill them, but slowly- so they ll pretty much fight against it.
This is why suicide exists; when you know there s only pain and suffering waiting for you, but everyone wants to keep you alive -while wishing you could just go so they can inherit your shit or simply release themselves from your suffering- because they have -financial- interests in doing so.
The real mechanics of "life" are really twisted, far from the bullshits stories adults feed their kids with. Growing up is just realizing how cynical and vain animals we "humans" truly are.
I remember this old woman who had a dying very old dog. Dog wasnt able to do shit anymore but curl and sleep at her feets, didnt want to eat anymore. She forced it to eat, went to a veterinary. She pretended to love the poor animal, but she was just forcing it to stay alive while it was suffering 24/7. She didnt do it for the dog, but for herself, cause she didnt want to be alone. Eventually dog got euthanazed, and she bought a new dog.