Hi Helen
They do seem close so I imagine that Celia would keep them together, although the little 3 legged girl's disability will obviously limit her rehoming chances as she will have to wait for the right type of home/person.
I do hope she's not just running on adrenalin. She's looking and behaving just like a normal healthy bunny, she's been hopping around her cage, throwing her toys about and grooming herself. She's eating well too. She's on pain relief at the moment, but I'm not sure how much discomfort she is in as the leg really doesn't seem to bother her. It must have been utter agony when it happened and I'm trying not to torture myself by thinking too hard.