That's just so, so scary... honestly, you gotta do whatever it takes to get away and set those boundaries. Tell him straight up to leave you alone, period. And maybe even a police report if you have to?
My own worst stalker mess... it was with this guy, a Cancer sun, Aries moon, Scorpio rising... we actually met in an astrology group, years ago. I blocked him everywhere, but he still said he'd wait the rest of his life no matter what, and just... so many other crazy tries. Total horror movie stuff in real life. He still emails this super old email of mine? Even though I've had him blocked on everything for over four years now... (I'm kinda trying to collect evidence).
They just... go so far. So please, please be careful? Take your own safety seriously, because some people... their feelings or whatever's going on in their head just blinds them. They forget all about basic decency.