Angiebabe,
I'm so sorry for you and your family having to face this horror. I HATE cancer, it has stolen several members of my family from me and from what I saw them go through I would make the same choice you have made. There's a point where you have to say enough and choose to live live what life you have with dignity and a quality of existence and I wish both for you, with love.
I'm so sorry for Jade, the life she has known to this point is over, no matter what happens she never be able to just go back to being the person she was before. I hope with treatment she has a good prognosis and is able to build a new life for herself and her family.