Nobody can tell you when to let go, nor should they have the audacity to try. It is not their place to decide when you are ready. When your body has reached its limit. When you are done with IVs, chemo, wires, CT scans, X-rays, lab work, and trips to the ER that aren't stopping the inevitable.
You will know when it's time to let go and opt for comfort instead of a cure.
It won't be how you had hoped or prayed things would be, but you'll still know it's right -- as right as something so fucked up can be.
There are still difficult decisions ahead, and Bob and I pray we do our best to make the right ones for our family.
For now, I just listen to him breathe and hope he's right about me being able to do this on my own when he's gone.