All the talk about Kay in the other thread got me thinking...

Did Kay know about Michael's first marriage to Appolonia?

In the novel, in which the Mike-Kay reunion scene is considerably different than that in the film, Kay and Michael are in bed, when she tells him that she has "gone without a man" for the two years Michael was gone. She then asks Michael "Did you (have a woman)?"

Michael replies "Yes, but not in the last six months."

Puzo then writes "It was true. Kay was the first woman he had made love to since the death of Appolonia."

But he doesn't tell Kay about Appolonia in the novel. And I'm pretty certain that no mention is made to Kay about Appolonia in the films.

Do you think she knew, and if she did, would it have affected her feelings towards Michael?