I have 2 double date recommendations:
Drood by Dan Simmons
The Moonstone by Wilkie Collins
Drood tells the story (fictionalized) of the relationship between Collins, who is writing The Moonstone, and Charles Dickens.
The Hours by Michael Cunningham
Mrs. Dalloway by Virginia Woolf
Two great books, one is (among other things) the story of the woman who is writing the other.