It is possible to "drop the rope" COMPLETELY, and still not give up on your marriage. The fact that you're this "done" indicates to me that it might even be very successful.
I do think you should get some good legal advice, if you haven't already done so, just to know what your options are if nothing else. It helps. But why can't you take a strong financial stand with your wife, and still not give up on your marriage? Or don't you love her anymore?
