Why does he always talk to me in person, but never texts me?

This guy that I started liking talks to me a lot, and when we talk he always looks at me in the eyes. We talk a lot in person. But whenever I text him he either won't text back or gives me short answers. I'm not sure if he likes me. But he's always talking to me. I don't get why he won't text me then... does he not want to be talking to me?
Why does he always talk to me in person, but never texts me?
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