This dude at work asked my number. We had a few texts then he hasn’t replied in a day. Should I block him and move on?

I don't know why he asked me out. It was a surprise. He even texted me ‘why were you so surprised that i asked your number? Your jaw dropped’

i just said ‘I wasn’t expecting it’

This dude at work asked my number. We had a few texts then he hasn’t replied in a day. Should I block him and move on?
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