I am kind of afraid how he will react , I do have a place to stay with my brother for now and I am not planning to tell him and neither my brother will not let him know that I am there .

Depends on his personality. Some men you can talk to and some you need to take percaution. If he is a narsisist, do it behind his back. Get all your personal items that you feel are important so he want tear them up. When you are ready to serve him the papers be long gone or move in with parents.