hi
It depends on the bunny - Claude was very gentle so Marie put Miffy back in after a day living next door to him - But if the bunnies were still at the humping and chasing for dominance stage it wouldn't be a good idea to put the girl back in, plus she is supposed to be indoors for at least 2 days (OK if you have a house bunny pair) and needs to have less exercise, jumping etc for a week, just so's she doesn't start it bleeding again - it's a major operation, unlike neutering for boys.