This book has a lot of potential and some excellent writing. But there is one major flaw that undermines the entire experience, and that is the opening kidnapping. Not the fact that it happens, we could forgive Kadar that, but the manner in which it is done. She is manhandled, mocked, frozen, starved and treated with unnecessary cruelty. Although his behavior improves on further acquaintance, there is no demonstration that his character itself has changed. This leaves the reader in dissonance with Lark for the rest of the story. She goes along with the wedding quietly, and we're disappointed and baffled. She stays with him, but we aren't convinced she should have. She forgives him, even though no apology was ever made, but we haven't. A good romance makes the reader fall in love alongside the heroine, but that's impossible in this situation. I found myself more moved by Ulias than I ever was by Kadar.
My recommendation would be a rewrite of the opening few chapters. Show Kadar doing what he thinks is necessary, but with some self doubt. Show him as a fundamentally moral character making a mistake, not a callous and spoiled man who can be turned by a pretty face. And most importantly, show him treating a woman with respect even in a tense and frightening situation. The rest of the book would take care of itself.