I have two free-roam female lion-head mix rabbits, about 11 months old. They are from the same litter and were very close until 2 months ago when they were spayed. They immediately nip and begin to brawl, which ultimately ends in me sweeping up clumps of hair. I currently have them in separate cages that are close enough for them to interact with each other, without killing each other. I am desperate to get them to love each other again. It is so sad. I feel so guilty for spaying them. Any suggestions? Is there any medication the vet could administer to relax them enough to bond? I am so desperate.