Aly, so sorry to hear about Harley. In situations like this you have to do what's best for you and your current furbabies as well as for Harley. Like Jackiesdaisy said, sometimes, no matter how hard you try, some "kids" just won't get along. All of us here are behind you and hope you can find the very best home and situation for him. Good luck and let us know what happens!