Well, situations like this are what you keep Cheevy-critters around for.
Observing the awkwardness with his truly remarkable powers of insight (>.>), Miniver straightens up, looks around to each of the three, and quickly explains.
"Henn, that is apparently your aunt Michelle, who looks uh... a lot younger than you, not that that should come as a surprise in this place. Michelle, that is your neice, who used to be engaged to my daughter I think. Henn, I hope you are not technically dead because that would like, totally undo all my previous attempts at explanations. Have some chips. Or souls. I forget which one you eat..."