try to be very nice to him, and be more romantic.Â
Would you rather kill him..
Sit him down and make him see reasons to desist.
First of all find out the cause whether from your attitude or is there any other things you as a wife is doing that is not right,after that,change your ways and start talking to your husband. He will definitely change to good.
Patience, perseverance and self love is the key to overcoming a cheating husband.