Is it good now, or just better?
My INFJ bf experienced the trifecta of child abuse. He now feels guilty about the idea of cutting off his parents because they have "improved" - his example being they actually waited to start dinner when he was fifteen minutes late, once. He doesn't even find this ironic.
In reading about abuse, I have come across the idea that forgiveness isn't always the healthiest idea - indeed it can impede healing if you haven't dealt with the anger and pain first. As much as forgiveness can feel like what healing is supposed to be, anger can be healthy; expressing it can be healthy. And if he just wants it forgotten, it doesn't seem that he has clearly confronted the reality of his actions. Acting like a jerk, 'reforming' and then blaming the other person for not being forgiving right away is emotionally abusive too. You cannot feel guilty for feeling the pain his actions caused. You don't have to forgive or forget until you are ready. Of course anger is tiring - but it is also an important signal to indicate when wrong is done. Eliminating the reasons for anger is more lasting. Besides, emotional abuse can easily lead one to discredit, dismiss, or manipulate one's own emotions into others' ideas of what is acceptable or healthy - be careful that's not what is happening here. And best of luck.