Hawk by May Gordon

Rose Mills is happy with her small-town life and running her bakery until she meets a gentle giant named Hawk. She dreams of being with him, but she’s too shy to let him know and he doesn’t say much when they do talk. A dangerous situation isn’t the ideal time to begin a relationship, but Rose needs help and Hawk is the only one that can provide it.
Spencer Hawk is a founding member of CIG, and the epitome of silent but deadly. He’s struggled to adapt to civilian life, unsure it was for him. Then he saw Rose and instantly knew she was his, though he didn’t think he deserved her. For five years, he’s watched over her, keeping his feelings to himself, but he needs her too much to stay away any longer.
However, someone else has other plans for Rose, and they don’t include Hawk.