I can't believe this woman has the nerve to ask for the cat back after 8 MONTHS. No, I would not give the cat back. I agree with cataholic who said not to put anything in writing and do not record anything. Act as if she gave the cat to you as a gift. Who asks for a cat back after 8 MONTHS???? I think it's a good guess that she will not take proper care of the cat that requires care and expense. To me she sounds unstable and I would not want her to have that cat (or any cat actually) in her care or lack thereof.