Kiss of Revenge

You've finally made it. You're a doctor now, working at a major hospital in Tokyo, the very same hospital whose covered-up medical error caused your mother's sudden death 12 years ago. Since then, you've lived for nothing but revenge. But now... "No matter what happens, I’ll always love you". You feel yourself pulled towards his lips and you hesitate, your hand and the knife in it freeze for a moment. Would forgiving this person be wrong?