His Paradise by Natoshia Baer

Aden has spent his entire life following in his father’s footsteps, and he was content to continue on his path. He knew his life would be one danger after another, but Aden was never afraid when he stared down the barrel of a loaded gun. The one thing that scared him was witnessing his best friend Isabelle, and his sister Luna, finding love in the very world he wanted to shield them from. The idea of dragging another person into this life wasn’t something he planned for.
But when he sees her being married off to a murderer, his heart calls the shots.
Being the daughter of a family that has deep ties with the local mafia isn’t a problem for Nina. She knows how to sit up straight, has perfected her shy smile and never speaks out of turn. She is the ideal wife, and David Killinger has chosen her. Unluckily for her, David is a cruel and violent man who likes to break pretty things. When Aden steps in to save her, Nina is finally given a chance at genuine happiness with her new husband and son. They create their own path, one that leads to a life neither could have imagined.
Until her past comes back to haunt them.

Can Aden save his little paradise, or will it all fall apart when Nina disappears?