I almost didn't read this after reading reviews and comments by other readers. I am so glad I went ahead and read it.
For the most part I am not a fan of D/s reads, and perhaps the publisher should have mentioned that aspect of the book in the blurb. In my opinion, this book didn't focus on that. The book was more about the two characters years of emotional commitment and longing. I didn't see the "kidnapping" the way some of the other readers did- it was not a true kidnapping, more of a coercion/intervention. There was certainly no non-con.
If you are on the fence about reading this one, I urge you to read it. I could not put it down. The relationship is special and touching. Don't get focused on one or two passages that some reviewers have quoted. Most books have passages that you roll your eyes at and this one is no different.