He cheated on me. Blocked me and pursuing other girls. What should I do? Move on to a new guy without telling him as I'm not in contact with him now?

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+1 y
People say breakup first and then move on. But I can't breakup with him anymore as he already blocked me through all ways. Should I move on to a new guy without telling my ex and forget that this worst guy ever exists and choose a better life without stressing about it much?
Updates
+1 y
I will definitely inform the new guy about everything before moving on with him but is moving on right without telling it to my heartless ex when I'm not in contact with him anymore?
He cheated on me. Blocked me and pursuing other girls. What should I do? Move on to a new guy without telling him as I'm not in contact with him now?
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