What would you do if your husband doing bad stuff behind you back and lie about it?

Um, if you can't communicate and you fear that you're partner will get angry or leave you if you express your feelings to them then you don't even have a relationship with that person. I agree that it will probably only get worse. Are you really willing to continue dealing with this or actually find someone who will not lie/hide things and communicate effectively with you? The choice is yours.