In this matter, it should be your call what you want to do further if you found your wife cheating on you. You can do two things, first, you can simply give her a divorce if you don’t want to mess up with things and you can’t afford to live with her. Secondly, you can fight back and communicate with her why she did this. You can give her a chance to justify herself and explain whatever she had done. You can keep it between you and her and sort out the matter. The choice would be yours whether you want to give up on this relationship or listen to her out and try to sort if possible.