Why does he leave me hanging?

Everytime my crush and I text he always leaves me hanging. I texted him twice to start the conversation mind you he hasn't me first yet. Like after 10messages he doesn't text back. It's frustrating because I'm trying and he doesn't . what should I do?
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No I mean overall that when we text he leaves me hanging after 10 messages.
Why does he leave me hanging?
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