Normally I agree with Bond, but I wouldn't apologize. Maybe going forward you notify her of big expenditures, but I think that you need to stop being such a push over with W. Apologizing isn't going to help you with that.
M 43 X 38 T 13 W moves out of home 11/2010 Roller coaster from hell 2/2011-5/2012 I request divorce 5/2012 W moves home 6/2012 Good time 7/2012 - 1/2015 I leave 3/2016 process of divorce