His Only Weakness by Felicia Breneé

The man.
The monster.
The legacy.
When Navy Seal Master Chief, Brady Armstrong’s life is threatened, the family legacy emerges in a shape-shifting beast that can withstand bullets, shrapnel, and crushing debris. Love is the only weakness the monster cannot shield Brady from. But he is determined to end the legacy by denying himself the one true love of his life, Heather Richards. Never will he mate with her… again.
Secrets
Broken hearts
Destiny prevales
Heather Richards has spent the past two decades mending her broken heart. The only man she every truly loved crushed it the day he disappeared, leaving her to bury their miscarried son. Trying to move on she finished college, moved to Colorado, and started a career. The desires of her heart were never fulfilled… until Brady rode into that campsite with her lost niece in front of his saddle.
Can Heather finally get answers? Will Brady keep his vow to end the legacy? Or will they face the legacy together? Can he face that she is his only weakness.