Shifting Fate (Breaking the SEAL #3)
Wren Michaels

Braxton “Brawn” O'Brien was the runt of his pack. He left home to make a name for himself as a Navy SEAL, where as even the smallest wolf, he towers among the humans, using his preternatural abilities to save lives. But lately his wolf side has been battling anger issues, and the rage inside him cannot be quelled. He's forced into medical leave to figure out what the problem is, or his military career is over.
When Gerri hooks Braxton up with a bodyguard gig while on leave, he hopes she can also find him a mate to satisfy the beast roaring inside him. One look at his charge, Sylvia, and he knows she's the one. The problem is then convincing the spunky, yet shy human of the same. When the threats on her life turn into attacks, Braxton will hunt until his last breath to keep his mate safe. But Sylvia's got secrets of her own, that may make or break the mating bond.