She was really damaged from the attack then, didn't he take her to the vet after the attack? You really need to see what they can do for her, as she is most likely suffering from something serious here. I have 4 cats, and love them too much to let them suffer in any way. I hope you do as I am suggesting, at least for the rest of her life she might have a little normality back. Hope this helps you out, and good luck to you.
