I am glad she is getting some out . However- I would not leave her out if you are not in the room. My bunny room - I had no cords nothing- but one of mine got sick from eating the sheet rock- and just a little piece.
I looked at the ingredients of Bitter apple. It has 20% Isopropanol which could be a hazard to bunnies as their system is so excellerated.
I found just a few hours out a day was more than enough exercise. When you see the bunny is starting to lay down- they are tired and its time for a nap. Mine use to be 3 hours.