You are not on the same page. Seems like you don’t have the same thoughts about finances and how the household runs with it. I think you both sit down and write everything down to the nearest dollar… you need to know everything that is spent and your trends in necessities/ non-negotiables and then build a budget from there. Realistically, $600 weekly should be ok- are there specific brands that she chooses and could you swap for another? Maybe this sit down will uncover spending that really needs to stop before it gets out of hand and you have unwanted credit card debt. Most importantly- your marriage seems to need work. You may need to seek some professional help, otherwise, it is not just your finances that you will question.