synthetic angst created and distributed by bored grandmothers (aka Nana) who need to see their children and/or grandchildren at odds, competing, arguing, etc. The drama
is constructed to provide temporary distraction for Nana, and ultimately to allow her to resolve any resulting conflicts with a flourish of self-esteem building 'peace-making' gestures.
A. Guess what - Nana fomented a scrap between the kids to allow her to sweep in with cupcakes in a few days just to 'solve' everything!
B. Pretty standard NanaDrama. Ignore it to rob it of oxygen otherwise the flames will build into a family fight.