mmc tortures wife/gf then realise she’s innocent

update: think we found the book. Smokey by Sam Crescent. Tho I think i built it up in my mind to be worse or more, idk 🤷🏻‍♀️ i still liked it

I think it could be a mafia one but not 100% on it, but he thinks the wife/girlfriend has betrayed him (like all other people did/do) and tortures her to figure it out. She’s of course heartbroken but refuse to let him see her break when he so obviously doesn’t believe her. Then after he has tortured her he realises she is innocent and thats all i think i remember and i NEED it 🙈