Understood. What you should do is first gauge the situation and thoroughly think about her reaction. If she is completely going to go off a tangent and react unreasonably then you have two choices: Be patient and deal with it for the sake of your relationship and this is the most superior option. Confront the men himself and speak to him directly and tell him that you don’t appreciate his tone, mannerism etc and request him to keep your wife out of this discussion and say that this is a man-to-man discussion. If he is a NASTY PIECE OF WORK then don’t attempt this as it will backfire but if he half decent it will solve the problem. If there is hope of her understanding your point of view then it is best that you discuss the matter with her and make her approach him. At no point should this become a problem for your relationship. I don’t know how often you have to deal with him but it may be that patience is your best option.
Thank you brother for the advice. I will indeed speak to him face to face, I will bar him from coming to my house and my wife and our kids as he is only a strange non-Muslim man. If he forcibly attempts to enter our house I will exercise my rights by the laws of Allah and slay him. Once again thank you brother for the advice. May Allah Reward you.