I enjoyed The Spare Wife by Alex Witchel, although it starts off rather slow.

Ponce Morris grows up poor and decides at a young age that the only way for her to ever have money, a lot of money, is to marry money.  So that is what she does.  She falls in love with Lee Morris, or should I say, she falls in love with the money that Lee Morris has.  You see, Ponce doesn't really believe in love in the true sense of the word.  The idea of love is what she hangs onto, but in the end, it will not make her a better person.

After Ponce divorces Lee and walks away with enough money to live comfortably, she decides that she will never marry again; it's just not for her.  Early on, Ponce discovers that she makes a perfect "Spare Wife."  She can be there to have dinner parties, go to functions and galas or anything that is needed of her without all of the strings of being married.  Her friends do not look at her as a threat because they all know Ponce is not romantic in the least. Or so they think!

Babette Steele is trying to make it in the journalism world. The only problem is, she can't write.  Knowing this, she decides she has to find that perfect story to tell and to tell it in a way that will get her some recognition.  Who better to write about than Ponce Morris!  Babette came across Ponce and her married lover while in Chicago on an assignment.  The lover is not just any guy; he happens to be the best fertility doctor in the country, well known, with a loving wife and three young children.  Just the kind of story that Babette knows will help her break into the world of writing.  Only problem is, how is she going to write the story?  Turns out, Babette's mom's live-in boyfriend is also the author of a best selling book.  So Babette goes to him for some writing instruction and assistance.  Oh, did I also forget to tell you that Babette is also keen on dating married men and those very well off?  Similar to Ponce, just on a different social level.

Now I could go on and on, but what fun would that be?  This story picks up midway and keeps you interested until the very end.  Well-written and, after a slow start, continues with the story at a good pace.  Enjoy!