My theory was that the lemon demon is skid and pumps dad.

And he is after the girlfriend and boyfriend cuz he was mad they beat them at a rap battle 3 times in a row.

So he thought eating the girlfriend would be the best revenge.

Also thought he would teach them both how to cook but since they r only kids he only makes small non cannibalistic meals like normal sandwiches

(May make a chapter about dat later)