Unbreakable Bear by Kendal Davis

Coral was sure that she and Scott had tried and failed at love…
…but she didn’t realize how passionately his inner grizzly bear believed in their destiny as fated mates.
Coral Johnson was a gifted veterinarian, committed to taking care of all creatures in need. She came to Montana to meet her sister’s bear shifter fiance and soon suspected she was falling in love with his brother. What if that sexy and boisterous daredevil, Scott McCabe, was her own fated mate? Or was Scott was too focused on proving that he could permanently cheat death to ever build a real life with her?
Scott McCabe knew he would never feel safe again. He’d lost so many men in the desert of Afghanistan that his life now revolved around maintaining a hard shell of invulnerability. No matter how much he yearned to be with Coral, he couldn’t let go of his habit of taking crazy risks on the mountain. He had to constantly test his theory that he was unbreakable, or his memories would drive him crazy.
When Coral and Scott spent one amazingly hot night in bed together, they set it all in motion again. They both longed to be able to claim a life together as fated mates. And yet they would never get past the fact that Scott’s damaged spirit made him unable to commit to anything but danger.
Until trouble went down on rugged, icy Black Mountain that changed everything. When Coral needed him most, would gruff, daring Scott finally understand that his life’s purpose was to protect her?
She was his mate.
Forever.
Even if Coral thought that Scott was too broken to come through for her, Scott’s inner bear knew he would.
No damn way was Scott McCabe going to fail to take care of the woman he loved.