Whenever you see a kid throwing a weirdly adult tantrum, you can bet they watched an adult do something a lot like it at some point. Saige seems to have learned from the best arguer of all time.
She is stating her case clearly, concisely and with lots of HAND CHOPPING MOTIONS to solidify her IMPORTANT points.
From this, we can only assume that she has been watching a lot of "How To Get Away With Murder."
Saige is "MOVING ON" and there is NOTHING you can do about it.
In summation: This girl is going to be amazing at breaking up with dudes when she's older.