I vote for the 3rd cat (I know......no one is surprised I said that). But honestly. I think she NEEDS a playmate and George is not going to fit the bill. George may be like Fern is in this house. Fern does not want to be played with !!!!! And 99.5 % of the time no cat bothers her because there is ALWAYS someone else who DOES want to play.
(just my opinion)