Yea .. how old/big is she? How big was the rat? Depending on the answers to these questions, a 10 day schedule might be a better option. Definitely better than 3 mice a week IMO. Multiple prey items can hurt the digestive tract of snakes. I have one bp that doesnt bother to strike and coil around prey either. He's been on pre-killed almost exclusively since i've had him, and he's only struck and coiled a couple of times. As long as she is eating ok, nothing wrong there