Thank God you understand that it is a Spiritual War too. I do pray for her daily with many people. My W was told by Benny Hinn and many other ministers that she has a calling on her life. W was sold out to Jesus during her youth but has been running from her calling during her teen years. As soon as, I totally gave my heart to Jesus, the problems began to happen. Believe me PDT, I has grown so much spiritually in the battle. I was so weak in the beginning, but I'm so much stronger today because of this. I have learned alot of things about myself too which I'm thankfully about.
Just realize that she has free will, and that His timing may not be yours. And that He may try to use this horrible situation to teach you things and grow you in ways that might initially seem painful.
That was (and still is) tough for me to understand. I'm usually like "Lord, your will be done, not mine," and then I complain and don't understand when He doesn't fix things the way I think they should be fixed!!
I guess that's the "my own understanding" part that I'm not supposed to be leaning on, eh??