I think people who read this book and thought it was too heavy on the sexual aspect of Wade and Russ's relationship did not get the point of the book. The author is very upfront that it is about surviving, confronting, and gaining power over intense trauma.

The healing from sexual trauma understandably revolves around sex, at least in this instance. For Wade, empowerment of his life, his friendships, his career, all have to start with sexual empowerment. That is the very crux of reclaiming his identity.

Wade needs to navigate each part of his life like a ladder. When before he could engage in all areas of life simultaneously, now he needs to work on each area seperately and feel proficient in it before having the confidence to expand another area.

So, yes, this story is about sexual reclamation. That is the foundation for the characters to establish fulfilling, healing lives.

It is also about reshaping trauma to eliminate its power. About 70% through, the title suddenly clicked. Wade slowly comes to terms with wanting to experience pain with Russ to replace him in the memories of his torture. The Difference Between is that he can trust Russ; that he is safe and loved and in control where before he had no control over whether he hurt, how much, or even if he would live through it.

Such a nuanced understanding of how kink and CNC can aid in recovery. I am not surprised with the author's background in psychology