[ Akko should let it go, she knows that on some level. It's obvious this is a person with a cruel streak - she hasn't met too many of those, in fairness, so it's hard to know what to do about it. But she can't stand the glee in Jinx's voice when she confirms her accusation. ]

The issue is that being cruel to others because someone was cruel to you makes the whole world cruel in the end. You would be happier if you tried to grow from it and live a good life instead.

[ She balls her fists and continues to keep pace. Why wouldn't this person want a better life? Why throw it away being angry and getting "revenge"? That seems like a hollow existence of suffering, to Akko. ]