Honestly. It sounds like he may have a personality disorder on top of being avoidant. He didn't learn anything except how to blame something and warp and weaponize it for his own bitterness and narcissism. I'm glad you blocked him. Whether or not he gets karma soon, he will likely always be unhappy, so just live your life focusing on you. One day you will eventually appreciate that you stood up for yourself by ending this, and dodged a bullet.
Happy and peaceful people don't need so much validation from audiences and others that they've stated they don't even care about whether they live or die. I hope you're able to focus on yourself, because there are zero answers for you that lie within him.