Deep in Crimson - Sarah Gilman
Book two in the Sanctuary series.  I still think some of the base components of the seeing are cool, and the first book was cute in a simple romance novel way.
 
This book had a bit to much of tortured past and anguished true love.  I'm not big on that.  I feel like these were used as crutches in place of actually developing plot our characters.  That being said, this is often a failing in romance novels, and the author refrained from using utterly ridiculous descriptors.  So on that basis the novel is an enjoyable action romance, it just wasn't for me.
Source: http://libromancersapprentice.blogspot.com/2013/11/book-review-deep-in-crimson.html