There are ALWAYS ways to solve problems without
using evil. That depends on how you view the situation. Why repay
bad with bad? I think TV dramas have all those vendetta stuffs: En
En Xiang Bao He Shi Liao. (Should be this words... Muz correct me
if I wrong.) It means when will all the "vengeance" ends?
Somebody did you wrong, you repay that person with the same evil
intent. That person knows and try to do you wrong again, and you
reply in kind. It is a cycle that will not end until one party is
willing to forgive and let go. I know it personally, it is tiring
and a waste of time.
Be the first to take that step. You already have the intent of not
doing further evil. Even if that person is unwilling to accept, at
least you know deep inside it is not a good thing to do so and you
tried.