Chris, if I were you I would remove all barriers and keep tabs on Bob's where abouts if Ebby is on the prowl. I have found that if there is not out and out war waged, then let things (the furry things) work out their arrangement within the household. I believe (and I could be WRONG) that animals take on all the silly, scaredy cat feelings that we may have about things.... the more relaxed we are, so are the animals. Don't read into too much about Ms. Ebby. It is way too soon to figure this little miss out....and she IS in BOB's house, which by itself, is reason to be nervous and unpredictable. Anyway, keep us posted and relax with these two. It will be fine, I am sure!