“Has anyone had any experience of anything like this or any insight of what to make of the entire thing?”
Yes. I’ve been on the receiving end of behaviour like this.
What I eventually made of it was, he liked the idea that I was keen on him, that he wasn’t actually ready to date and was simply playing peek-a-boo with his feelings/dipping a toe in the water then literally getting cold feet and running away. I don’t think he was doing it out of malice or intentionally playing any games with me.
In the end I decided enough was enough and the next time he ran off and came back again I just let him know that as lovely as he was, it wasn’t working for me and I needed to call time on our chats. Cue a bit of waffling from him about lets meet on Friday and talk it through, he can explain better in person, blah, whatever. Friday never happened. He went radio silent on me again. Messaged me again apologising. My final message was “I’ve heard it all before, what I said before still stands, I’m looking for something more than you can give me so this is a final goodbye”.
I didn’t block him but I did ignore the couple of messages he sent after that. Strangely, they gave me the ick and I stopped feeling bad for ignoring him and I stopped wishing he could be Mr Right. Clearly he wasn’t, despite us getting on really well in a penpal sort of way.
I’m guessing you’ll reach a point where you’ll get sick of it too and even if he unblocks you and gets in touch you’ll be like “yeah, whatever, yawn, bye”.