Ethical

She requested euthanasia if she should become numb to the world.
Her partner was fit and well but he was going through pain that could not be seen or measured.
They considered a joint euthanasia but it was illegal across the world and seen as murder suicide.
Eventually she was euthanized and her partner was left alone. He was efficient in everything he did, busied all the time but this had slowed him down and left him wanting to stop and reflect on his loneliness and purpose.
Eventually deciding to leave this world as slowly as he had arrived.