Guy who rejected me is reaching out. What should I do?

So I was dating this guy and he basically said he wasn't interested in me anymore and his life was getting too busy to date. I respected his wishes and cut myself out of his life. No communication or anything. Before this, he would ignore my texts and silence my calls anytime I tried to call (when we were dating).

Now, he is back saying he wants to date again. Calling and texting. Do I answer any calls or texts? What should I do? I really liked him and him saying he wasn't interested hurt me at the time.
Guy who rejected me is reaching out. What should I do?
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