Yes this is horrifying OP that you can't see any of this after writing it all out.
And even worse that you've fallen for his self-promotion so much that you think if he'd written on here, he'd have a sympathetic audience. Men do post on here asking how to get their exes back, you know, all the time. So I can tell you now exactly. He wouldn't.
He'd be told the exact same as those other men: to "stop bothering that woman, she left for a reason, let her go and live her life in peace. Even if you persuaded her and she did come back, without fixing the underlying issues, the relationship would never work. If you really wanted her back you'd put the work in and change yourself, instead of exerting all that pressure outward on her."
If you find that you tend to believe everything you're told by hearing it enough times, then you need to stop listening to nonsense. Your experience has already told you that's it's bullshit.
He’s not still contacting you out of love or affection. He hasn't met someone else to distract him, that's all. He loved being a dictator, Mister My Way or the Highway, and he enjoyed the way it felt bullying you and making you jump through hoops for him. That's what he wants back. Not you personally, but the way making you feel small made him feel big. If he could meet another woman to bully in the same way, he'd happily move on. But there's enough of his hooks still in you that he’s able to twist it. He’s not even nice to you or respectful of you as a person. And still he’s managed to get you to think that you could fix this by giving up your life to be his sacrificial victim and not wanting to return is somehow your fault.
Believing in this Gospel of the Abuser is only your fault for listening to it. Like if you spent your life on YouTube listening to conspiracy theories and started saying "well, there's so much of this content it can't ALL be wrong". He’s telling you the sky is green despite the evidence literally in front of your eyes, and you shouldn't be entertaining this nonsense. Block him and give yourself the headspace to listen to your OWN thoughts and opinions.