I'm not sure if is a bug or or just unfinished, but at the starting cutscene when offering your body to Vito to reduce the debt, at the expense of the partner being mad at you for doing in front of them, the relationship is not at all affected for the rest of the game, it doesn't increase or decreased no matter what actions are performed, and the interactions between the two blue dogs are not changed either, they always act like they are in good terms and always smiling and DTF regardless of the relationship with the player's character (which I'll repeat, does not increase or decrease no matter what actions the player takes)