Hell Hath No Fury by Skye Jordan

As a high-profile Washington lobbyist, Jessica Fury has all the coveted trappings of DC: money, connections, and influence. But five years ago, she had something far more precious: happiness. She shared a firefighting career with her husband and the love of her life, Quaid. Then one day her hazmat team walked into a chemical inferno–and Quaid never walked out. Jessica has been through hell to piece her shattered world back together. Then a rumor surfaces that could bring a miracle or destroy her–again.
Q has been a prisoner for as long as he can remember. The men who hold him have honed his mind and body into weapons, and he’s developed abilities no one understands. They wipe out his memory, test him like a lab rat, and lie. Even though his past has been erased and he doesn’t believe he has anything to live for, instinct tells him different: there is a woman out there who needs him. And what his mind can’t remember, his body can’t forget. . .