"Fail not our feast"

So one of the 7th graders had a birthday party last week, on Friday, and nobody showed up. Not one kid.

We asked if the kid thought it was because of the snowstorm, but that didn't seem to be the case.

I want to respond in some way, to say it's OK, or will be, or help the kid just say, "fuc.kem" but I'm not sure what to do.