The CIA assumed in the first half of the '90s that Aldrich Ames burned her covert status, so she was withdraw from that role long before any of this happened. Just another desk bound "operative" in McLean, Virginia, where there's a highway turnoff sign to the HQ.
I'm not sure what that has to do with anything. Outing a covert agent also risks outing other resources in the area, or sources and methods. In any case, it was clearly not a good idea for Scooter Libby to reveal her identity to Bob Novak.