well its part of the package, you cannot do away with it.... perhaps you have to learn to live with it.... why not have a heart to heart talk with your wife and tell her your indifferences with her mom?..... nothing can be solved by arguing.... its a matter of adjustments for each other.... lay down all your cards and if not materialized do tell your wife your final decision.... hehehe maybe tell your wife to send your monster in law back home....lol.