I think expecting her to move from New York to Chicago is a LOT to ask, so I don't blame her for getting cold feet. You are asking her to walk away from her ENTIRE LIFE. You really don't think that should be talked about well in advance of making plans for getting married?

My guess is that if you love her, you will stop acting like a stubborn child, call her, and tell her she was right.

Sorry to be harsh, and Happy Christmas to you.