Kim, just let it go. There is no way to convince her that you didn't think CDing was more important than family, she just had a bad moment and raised some expectations that were different from your thoughts and plans. This happened all the time to me, and it didn't have anything to do with dressing, just a million other things that suddenly became "more important" than my (soon to be ex-) wife or her plans.
I used to do this, fit her requests in as much as possible but at the end that sucks your soul... you just can't do that forever, sometimes you have to put yourself before anything else.