Impossible to even think about this book without referring to how extremely autobiographical its content is (or at least seems). Haag herself - a lightweight comic writer - recently divorced in circumstances highly similar to those of her heroine (a lightweight comic writer whose husband walks out on her...).
That said, this no doubt taxing experience has done her book a lot of good.
The writing is still lightweight but the plot breathes pain, sorrow and fury, though nowhere near enough to pass the real-literature test. Remove Haag's personal experiences, and there is not much left to this.