You did what's right. For you. You don't need closure from him because it really means nothing. It's rather typical what he is doing. No one likes to be dumped.

He didn't do what he did (such as repeatedly scratching for women online) not because he didn't know it might hurt but because that's how he is. His life style and values etc

It took me awhile to realize and recognize that my ex drank because he is an alcoholic not because he didn't know it is bad. Same here. He did it and does it and will continue doing it.

You can block his number and move on

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