Hello urwithme
I do not presume to know more about Islam than any others here, but I thought Muslim men could marry non-Muslim women? Or is she not one of the children of the book? (i.e. she is not a Christian or Muslim)
If I were you, I would find somewhere quiet where you feel at peace and ask God yourself. Sit or lie down, take some deep breaths to quieten your mind and visualise yourself at the base of a mountain. Find a path up the mountainside, and follow it, taking note of the rocks, plants, features, any animals etc. as you go. When you reach the peak there stands God - as you are a Muslim, you probably will not feel comfortable visualising him, so I would visualise Muhammad or an angel instead. Now you are there, ask him any questions you like, and ask him what the right path is in this situation. Then, just before you thank him and leave, imagine the angel giving you a gift. Take it, cherish it, and remember it.
May the God of Abraham whom we all share watch over you brother.
Elvendon