We have 4 bunnies. 2 spayed females and 2 neutered males. We worked at bonding our 2 females; they were fighting real bad. It worked, they were good. Yesterday the 2 girls started fighting again. A Furnado. Can I get some advice as to why they would revert back, and what do we do besides goback to square one of bonding them. Do they get hormonal in the springtime even if they've been spayed? HELP!!