I agree with Lenny.

I also really strongly encourage you to listen to your intuition. You don't feel safe. Please listen to this.

You can tell him to move out. You could tell him nicely but firmly. Have a cell phone ready and an escape plan just in case anything happens. Ideally have a friend present.

Let him go, have him move out. If he gets into therapy, does the work, improves, and if your intuition no longer tells you to stay clear - you could try dating. Don't let him move back in.