What a bad book. This review might contains some spoilers.
For a thriller it contains very little action in the plot, okay, so maybe it is supposed to be a psychological thriller, but most of what passes as psychology here (and the husband of the protagonist is a depressed psycho-analyst) is the protagonist repeating every time, first, how happy she is and how she is harsh and that successful women have it hard socially, and when things turn around in the plot, she is repeating how bad it is she messed up her life and that of the persons she values.
The husband turns over-night from a depressive weak person into someone who can finally be himself again when he meets a women, who instantly falls in love with him. Yes they live happily ever after with the book only giving us a few reminders that they sleep together.
The finale is badly written. Of course there is the 'plan' the protagonist makes to set things right, that is hidden and which she will 'tell you tomorrow', after all is done, fine, but the descriptions of the ending itself could have been better. It hardly covers what happened, and it wasn't that much of an ending either. I had hoped for a more creative way out.
There's also the fact that two times the writer used the same sentence. On page 46 it is the protagonist about 'getting an damned old and sour head', and on 66 it a patient saying 'But you get an old, sour head from it', both describing their relationship problems. The other incident is that of a 'weird click'.
Oh well. It is an easy read, and while not very interesting or surprising, I finished it very quickly