His Disobedient Bride by Kate Raven

You know how you have nightmares where the monsters are chasing you, but you always wake up before they catch you?
My monster’s name is Andrei.
And he always catches me.

A summer trip to the beach leads to unspeakable tragedy that Cerise barely escapes. When Andrei tracks her down he finds that she’s rescued a shy, clumsy American tourist named Mary MacDonald in her escape.

But Andrei doesn’t allow outsiders into the Bratva.
She’ll have to be killed and disposed of.

Cerise is the only one who can possibly save her.
When Frederik meets Mary, he has no intention of falling in love. But he can’t help being drawn to her quiet, gentle ways.

And to win her heart he’s going to have to admit what he’s denied for so long.
He’s a dangerous Petrovic man too.