Lightning Dust could be nice, but the way she acted in the episode was প্রদর্শিত হচ্ছে immaturity, all because she anted to be a Wonderbolt, and she didn't understand that pushing yourself in the right direction, is different than being outright reckless. And once you're not reckless people tend to think of আপনি as nice. so maybe once she learns, she will be nice.