As Neville teaches, that everything in this world is you pushed out. Ho'oponopono teaches the same where everything comes from within you. 

He always talks about "What's going on within me that's causing this or that it is showing up in my reality?"

I'm so grateful for having encountered him and this situation. 

He mentions how releasing the memory will heal the other person. 

So, he also says we need to say sorry to ourselves, the higher self not to the other. Every interaction is with ourselves!
Enjoy!