It was a multi-step process;
1) I had no immediate response to her comment so I rolled off the bed onto the floor and lay in the fetal position for a moment while my dog happily licked my face.
2) I got up and apologized, then tried to distract her by telling her she had forgotten two years ago (although she hadn't).
3) I then suggested that we go out to eat, or at least heat a bowl of chili to make those hot dogs extra special.
She opted for the former. We went to a newly re-opened restaurant nearby (with the kid) and had a REALLY great dinner, although Delaney (daughter) broke a water glass and was pretty bad the whole time.
I think I am off the hook,; we have a sense of humor about these things, although it MAY come up again in the next wave of "pregnancy-hormone induced depression", which I see a little of here and there.