This one had such great potential, but the ending is what killed it for me.
I love arranged marriages in romance, especially when there are culture clashes, and this was no exception. D'Minicah is an alpha heroine, from a matriarchal world where men take what we would consider to be "stereotypical female" traits, such as being physically smaller and weaker, subservient, and something to be protected and cosseted. Toran, on the other hand, comes from a world that is the exact opposite -- women belong in the man's bed and are considered to be less intelligent and certainly not warriors.
Neither of them is looking forward to the marriage, and are surprised by the attraction and chemistry they have (when they're not at each others' throats, of course).
The frustration of the culture clash, of being forced into an intimate relationship with someone they hadn't chosen, and the angst of not only rejection, but of D'Minicah's realization that in marrying, she may legally be giving Toran far more power in their relationship than she'd anticipated, were wonderful.
However, the ending felt very rushed, and the I Love You's came far too quickly to be believable. I think had the story had another maybe 50 or 100 pages or something, I would've felt as though these two could have reasonably reached the point where they were actually falling or fallen in love with each other. Instead, the almost abrupt appearance of emotions deeper than anger, rejection, and frustration, really pulled the final rating down.