Hi there! Yes, the bad news is you will definitely have to have both girls spayed by a bunny savvy vet. The good news is, two months after their spay you can start rebonding them again. Bonding can take a while and it’s important to be patient with them. Your bunnies definitely did attack each other and absolutely will again, so it’s important to keep them seperate until they’ve been spayed and for two months after to give the hormones time to leave their systems.
Even if you do decide not to rebond them, it’s still important to have them spayed as female bunnies especially have high risk of uterine cancer from 2 years of age, like 80% chance. When that’s done, I see no reason to not rebond them. In the meantime it may make rebonding easier if you keep them in adjoining enclosures (so they can still see and smell each other), just make sure there’s enough space between the bars of the cages/xpens so that they can’t hurt each other even while seperated.