I like your answer. It is assertive and straight to the point without being snippy, rude or nasty.
I can relate to you dealing with a controlling WXW. My WW has always been a bit of a control freak. I used to let it slide if it wasn't important to me. Now it is crazy annoying and only getting worse.
Me:44 W:38 T:10.5 M:7.5 D:3 BD: 7/2015 W moves out of MBR: 9/2015 WW files for D: 2/8/2016