If you still bring it up two years later, you haven’t let it go. Be honest about that.

Saying something is fine while still returning to it is a way of keeping the grievance and the credit for forgiving at the same time. The thing is clearly not closed, and everybody involved knows it, which makes the claim of being over it the hardest part to talk around.

Decide which it is going to be. Either raise it properly as something still unresolved, in which case say what you need, or genuinely put it down and stop collecting instances. Both are reasonable. Pretending it is already finished is the option that keeps everybody stuck.