What should I do about this?

I started talking to this guy. Everything was going perfect. Literally wanting to know about my life in detail. Imitating flirting. We got in a fight he goes I don’t feel a connection. Then he goes I’m upset. Then he goes after tonight it’s over. Literally will not tell me what’s wrong and blocked me. Is this him and does he need time alone?
What should I do about this?
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