Throughout the play, George and Martha spar viciously with one another and with their guests. It is unrelenting, but Martha has makes one mistake: she mentions their son to someone else, thus opening up the secret fantasy that has kept their marriage going. The "apple of our eyes...Martha being a Cyclops" is another game (but it is a very private game with their "son" bearing a disquieting similarity to George's youth) between George and Martha and she has made it public. The ensuing brawl ends with George's decision to put an end to the fantasy and, perhaps, an end to all of the games. But in order to do that, he has to "kill" their son. When Martha screams at him that "You can't do that!" his replies "Of course I can. We just never talked about it" revealing that their games - which have become their life together - have always been held together by a mutual complicity in maintaining the fantasy. Remember, "Who's Afraid of Viriginia Woolf?" is a love story. But George is exhausted by a love that requires such artifice. By killing their "son", he puts something even more challenging to Martha: to love one another as they are - with all of their disappointments and failures in themselves and with one another - without the "comfort" of lies and fantasy. And it is that fear - to be seen and loved by George as she is, not as she would pretend to be - that frightens Martha.