This is just me, but I think this is a little different than your typical class, I assume it is one of your classes that you teach (i.e. one of the ones that you and your H are in the same business on).
I suspect the two of you do a lot of coordinating with taking care of D?
I agree with everyone about keeping your personal business to yourself...he doesn't need to know this, but when it comes to your business dealings I think you should keep it on the up and level.....I don't think losing his trust in this regards would help your sitch or make you seem less controlling.
Think about how you would feel in the opposite situation......Your H asks you to take care of your D because he had to teach a class that night to accomodate a student. Perhaps you even looked forward to doing something else, but knew you needed to do it for the company. Now your, H's student cancels at the last minute. Your H could come back early and take care of D, but he decides to go out instead and do whatever.....how would you feel?
How would have that panned out in this current example...he had a class tonight? Just my thoughts
TwinDad Me 39, W 36, M 11 W - MLC, WAW???? 2 Kids B/G 3 YRS Old Start of the Long and Bumpy Road..... On the verge of piecing.....a new beginning