Trying to explain why we feel the urge to voluntarily put ourselves in harms way and hunt (esp DG) to a non hunter is a little like trying to explain colour to a blind man.

Perhaps the quote from Ortega y Gasset is as good an explanation as anything. He said something like: " One doesn't hunt in order to have killed, one kills in order to have hunted"

The philosophy of hunting is surely one of the most complicated aspects of what we do...........

Perhaps you might like to ask her where the leather from her shoes came from etc (you could also mention food, medicines etc) and then point out that wild animals fairly hunted have a better life and a better end to that life and are put to better use than those animals kept domestically and executed for her convenience.