So I responded (you all knew I would!) but at least I waited 9 hours FWIW. I just said that yes we had a good time and within a minute she responded "cool!" and that's been it. She went and liked all the photos I've put on Facebook of me and the boys.
SaltyDog, props for waiting 9 hours when your comfort zone was 1-2 hours. That's progress! Now that you see she wasn't shocked or on pins and needles, you may be able to act even stronger next time.