Wild Atonement by Liza Street

The Dark Pines territory—where rivalry sparks passion.
Mountain lion shifter Hayley Jaynes is determined to prove herself trustworthy and responsible after disappointing her parents right before their deaths. Grizzly shifter Marius Nichols would be directly at odds with her goals of responsibility. He’s wild, he’s done wrong to Hayley’s brother and his mate, and he’s so hot that she doesn’t trust herself around him.
Marius deserves worse than Hayley’s scorn, and he knows it. Bad enough he helped torment her family—there are more secrets he’s keeping. If they came to light, he knows Hayley could never forgive him.
But in the Dark Pines territory, secrets have a way of coming out, and when an old understanding between Hayley’s family and a rival pride puts Hayley in danger, Marius must put aside his guilt and step in, or risk losing her forever.