Del beat me to what I was thinking. If you are not already try turning out the lights after the strike or offer in the dark with little or no light at all. (hard that I have a timid girl that needs to be fed this way.) Try heating more too like someone mentioned you might also try not thawing in water but over night in a fridge and then allow it to come up to room temps over an hour or so and heat with a hair drier. It might be the water that is putting her off. Who knows i am just guessing here but try switching how you deal with prey thawing and privacy and see what happens.