I know how that goes when you are relieved that kids events are cancelled. Enjoy your day off...even if you have to go prom dress shopping...good luck with that. My D went to the prom last year and I'm sure I will be taking her shopping again for a prom dress next month. It is fun but sometimes it can be difficult if they want something you don't necessarily approve of...and all of that for a dress that they will probably only wear once!
You sound like you are continuing to detach from your H's drama quite nicely and you are finally in a much better place. I am happy for you.