Easter - read back what you posted. You don't like him - you haven't met him.
It's all bullshit until it happens. So far you've exchanged words on a screen with someone who doesn't seem to be particularly good at responding with more words on a screen. That is all this is, so far.
I think deleting and blocking is a bit harsh, but as he's ignored you, you should ignore him for a bit.
This happens all the time with OLD. You feel a connection with someone you haven't met, because your own brain wants to romanticise about someone and you fill in the gaps in what they're actually saying.
But you haven't met him and while he can be incredibly lovely some of the time, he's not actually that into you if he's not replying.
Just go quiet and see if he steps up, and becomes consistent. Until you've met him, he's just words on a screen.