Dunno if he is, but skimming through the reviews on Amazon looks to imply that it was a military man named Cole and not the husband.
https://www.amazon.com/Against-Gripping-Psychological-Suspense-Novel-ebook/dp/B00D50BFGK/
Haha wow. ~~It's interesting also that the such books are also primarily consumed by women.~~ I would expect if these were unpopular in practice, publishers wouldn't take a risk.
Edit: Crossed out a part, I thought it was a romance thriller. It seems the book was self-published [1]. On Goodreads [1], more people liked it than not. On Amazon, the reviews are evenly divided from 1-5 [2].
1]: https://www.goodreads.com/book/show/18362055-against-her-will