Oh dear! It's happened to us all at some time or another. Well your best bet really is a boy, girls can be more difficult to bond together. But it's not impossible. When "Chester" comes home she will be tired and will want to be quiet and recover. She pprobably won't be interested in her dried food but you might be able to tempt her with some grass or herbs or spring greens, that's if she is used to eating this sort of thing. She will most probably take 2 or 3 days to get back to normal but they are usually ok. You will have to think now what to do, she will need 6 - 8 weeks for hormones to subside, maybe longer. Let us know how she gets on at the vets.