The problem with a book like Nightshade is that it loses much of the power it has (in the world building, the unique take on werewolves, Calla as our alpha female heroine) in favor of a ridiculous love triangle.

We don't even get any build up; the first chapter opens with Calla saving a human boy named Shay from a bear attack for no reason she can think of. Seriously. She throws away an entire life of following the rules to save one random hiker for an obvious set up for the triangle.

Then there's Ren, the alpha male she's betrothed to. I actually kind of loved him, though he and Shay did their damndest to take away any power Calla had by trying to mold her to what they wanted. Ren's the only one who seems to care for Calla, but that doesn't count for much when he's doing his best to push her to have sex in every "steamy" scene they have together. Shay falls for Calla and does his best to pull her kicking and screaming away from the pack life and rules she's known all her life, with little to no regard for how dangerous and hard it is for her.

Neither boy is worth the romance, which made the love triangle so unbearable. The plot and background elements would have made a fantastic, engrossing story, which was what got me reading until the end, otherwise I would have chucked this a long time ago.