Protective Instinct by Ebony Olson

Falling in love was never part of the plan

Five years after she was tortured, imprisoned, and forgotten about, Lyza is free to feel the sun on her face once more.
Forced to play the deaf and mute trophy wife of Mitchell Fairchild as cover for her role as his bodyguard isn't such a bad gig, but Lyza knows her past will catch up with her eventually.

What Lyza never expected, was for her past to be the reason Fairchild needed a bodyguard in the first place. Now, his enemy has two reasons to want him dead.

A League of Assassins meets Romeo and Juliet.