What is it with people who keep bringing up something they have warned people about after everything is solved?

I have this business partner who keeps bringing up "I tried to warn everyone but no one listens to [Her name]." It's annoying. She's been getting away with a lot.

Yes I get I got with the Narcissist ex I was warned about. I got lured in. Pure and Naive I was, what the hell can one expect? I was vulnerable. She didn't grow up with me. Clearly I was with a Covert ex before that. And then this one was a Malignant/Somatic one. I'm tired.

I know what I got myself into I studied Narcissm more than she did through the situation and got myself out. She knows this. Why do I still hearing this???

I don't want to be the person hurt someone's feelings but hey it must be done so that they can gain some self awareness at least.