Its too late for us even after apologizing?

I was angry at the moment. I insulted him and blocked him. After days in pain, I realize my mistake. I unblocked him and he blocked me back immediately. At this point, I understood that he was hurt. I write him a message on another platform apologizing and telling him I wish him well. No answer from him. Is this the end?

Its too late for us even after apologizing?
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