I see no problem with ghosting him.

Look, he is exhibiting classic abuser behavior. Period. He is love-bombing you. He is trying to isolate you from your family. He is lying to you and excusing his own behavior. He's been manipulating the hell out of this situation. He is already abusing you.

And you've never even met.

He should scarcely have to wonder why he'd be ghosted. The hell with his "feelings". I suspect he'd just use that as an angle to hoover you back in anyway. He IS an abuser. That is not up for debate. Don't waste another second on him. Get out now.

Sorry if that seems blunt, but it is unbelievably obvious.