The SEAL's Promise. Trident Security, #7

He made a promise to his best friend. He never expected it would change the course of his life. Eighteen months after losing her husband, Dana Prichard is still learning how to navigate life as a single mother. Through every challenge, Curt is there for her and her children-a steady source of support when they need him most. She never expected the man who helped her survive her darkest days to become the one who makes her want to love again.
Retired Navy SEAL Curt Bannerman promised his best friend he'd look after Eric's family if anything ever happened to him. He never imagined that keeping his vow would be the greatest test of his loyalty. But the more time he spends with Dana and her children, the harder it becomes to remember where duty ends and love begins. As their feelings deepen, Curt and Dana must decide whether moving forward together betrays Eric's memory-or proves that two hearts can heal after even the greatest loss. Former title: Whiskey Tribute ***Fans of Cristin Harber, Lynn Raye Harris, and Kris Michaels will love the passionate romance, nail-biting suspense, and happily-ever-afters of the Trident Security series.
It is best read in order.