Having written about The Sexual Life of Catherine M. as part of my undergraduate dissertation, I can definitely see myself writing a separate piece comparing the two! It has taken me a while to read this book (5 months, to be exact) but I am glad that I continued on with it as, having completed it, I now prefer it to The Sexual Life.
Whilst the first book includes many episodes that can be read as if they are happening in the present, Jealousy has a clearly reflective tone that is sustained throughout. Having read to the end of the second book, it is clear that this is a prequel to The Sexual Life as opposed to a sequel, the "novel" ending at a point in time just before TSL is written, dealing with Millet's struggles around how to craft a memoir dealing with purely her sex life.
The book deals with a lot with its 185 pages, ranging from psychoanalysis, sexuality, her childhood, life as a performance, her relationship with Jacques and art. Whilst it is no where near as sexually graphic as its predecessor it is still definitely a read for adults only, and not for someone who isn't comfortable with the frank and explicit discussion of sex!
Due to the content and Millet's writing style, I can imagine Jealousy being quite a divisive, "marmite" text (as was the case with TSL). Whilst I did find some of Millet's writing quite jolted and overly complicated at times (possibly due to issues with translation), I enjoyed the "novel's" sustained intellectual vigour. However, I'm aware that this wouldn't be to everyone's taste and I did find myself having to break up the reading of this book with "lighter" content, even as someone who enjoys reading academic material for pleasure.
I was originally only going to give this book 2.5 - 3 stars. However, I found the last 20 pages of the book provided a lot of closure whilst simultaneously maintaining Millet's contradictory, dual characterisation, which is also made apparent in TSL but is explained in greater detail within this prequel. Jealousy delves deeper into Millet's past and her contradictory nature (as well as exploring her far from healthy relationship with Jacques, a topic for another review/essay!), dealing with the flip side to her sexually liberated, in control self.