Your villain form keeps receipts. Not metaphorically — screenshots, dates, a memory that functions like subpoenaed evidence. Apologize to you wrong, and the case reopens. You have said 'that's not what happened' and then proven it, to a room that wished you couldn't.
Forgiveness, in your court, requires the full confession with correct details. 'Let it go' sounds to you like tampering with evidence. You've stayed mad about a fairness violation from years ago that the other party has genuinely, blissfully forgotten.
But everyone wants you in their corner when something actually unjust happens — you're the one who cares about true. The upright Justice closes cases. Rule on it once, then adjourn. The court fees are your own peace.