Are you sure she isn't sick? Did you move or change her enclosure recently? You know how the balls roll. Lol. How is the husbandry numbers? I don't think it's a waste and you shouldn't look at it that way. You have to do your part and offer a item. Try going smaller next time with a weanling rat or jumbo mouse. Try to not handle her or take her out of the enclosure for the next 10 to 14 days.