Tad, Have you given any thought that when she says that she wants to go home that she doesn't mean her physical home? Many people who are near death speak of wanting to go home. My father spoke of going home a lot during his final 7 months on this earth. One day, it finally hit me...he's sitting right here in his home, but what he was referring to was heaven. That was home to him.
Listen to what she has to say and comfort her the best way you can. Her time is growing short and she needs to know that you are okay and that it's okay to let go.
I'm so sorry that you are having to face this pretty much alone. It's tough, but the many memories that you shared w/her will help you through this time.
My thoughts and prayers are w/you and your family.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
