I know how hard it is to have a difficult situation with a pet as I have a cat ( my college aged son found her) that doesn't get along with any other animals. She is not as extreme as your situation but we've had to make special accommodations to keep her separate from the others or she would attack them.
Life would be easier w/o all this fuss but what are ya gonna do, eh? :)
Sending prayers that things work out for you in the best possible way.
Oops...should have been "no" suggestions to offer.