He's nuts. And there's probably a long sad, tragic story about how he got into this state. He didn't get there all by himself. No one in his hometown wanted him. So he went on-line and found love. And you promised to love him. Now he's distraught that you're leaving.

Don't go making promises to people you don't know. You moved in on a guy who is deeply disturbed. Now you better leave, or this will not end well for you. You better sneak out of there very carefully.

Then learn from this experience. He's already so damaged that you leaving will affect his mind like a spit in the ocean changes the sea. But he will hate you.

Don't ever say you're in love with a guy you met on-line, until after you've spent a lot of time IRL with him. Until then, you are only in love with a person you created in your own mind based on some flimsy evidence.

Did you know his character. No, of course not. But he said flattering things to you and that inflated you. Everyone has a streak of narcussism in them. He appealed to the one in you. Learn from this.

Going and living with someone is a huuuuge responsibility. You must know at a profound level who someone is before you go doing that. It's wrong to just try someone out.

So get out of there, so he can get the feeling of being abandoned over with. Maybe then he'll find someone.