Remember, your wife has put up with your antics for many, many years. This menopause is payback...
Just remember to keep on loving on her -- and understand that this is something she has a hard time controlling. IT is only temporary - it will pass.
My wife isn't quite at hat stage in her life yet, but I saw her mom go through "the changes." I think it lasted 10+ years. We all (including my wife and her family) think at some point she was just using it as an excuse...but I digress...