Palpatine RSVP'd "Maybe" just to be polite, but everybody at the home knew he was a pretentious ponce who didn't actually care about his own daughter-in-law. Well that's if you believe the whole Palpy-was-Annie's-dad-all-along thing, but whatevs.
As for Anakin, well...he was being encased in black armor. What do you think happened? He *couldn't* kriffing go.