Sex becomes lackluster or even an obligation. Lack of true purpose becomes an issue. That's exactly what happens to Polly and Michael. I found it painful to read. These two love each other, yet are unable to express that love.
Many readers enjoy stories that are darker, more complex, more angst-laden.
This one is all three. It's good at what it does. While I can't say that I enjoyed the story, I did appreciate it. And it was hard to put down. Just be aware that Family Practice deals with terrible loss and takes a painful, realistic look at emotional healing.