Why hasn't he called me out or left, yet?

I feel like I am driving him away, but he never seems to actually be moved by my behavior.
I like him, but we live fart apart so he doesn't want to date.
When we text, it's because I reach out and sometimes we have a good conversation, but often he takes days to reply.
When I ask if he wants me to stop contacting him, he tells me he doesn't mind me reaching out.
We talked a few days ago but then he left the conversation and didn't respond again for 2 days.
Still, he never says I should stop texting or that I bother him - even when I ask him about it.
Why?
Why hasn't he called me out or left, yet?
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