Is it selfish to keep her on earth but suffering?
Or is it more selfish to let her go without a fight?
Do you consider the feelings of the person more than what you can afford? Lifesupport ain't cheap.
Do you give up or do you give her another chance?
Think about what the person would have done if she had a choice.

Keep her on earth: she's suffering. Maybe she wants to go. It's expensive. But she still ahs a fighting chance. There's always hope.
Let her go: Maybe she ddesn't want to go without a fight. Maybe she doesn't want her family to spend so mmuch money on her.

So which to choose? Which is more ethical so to say?