Sorry you are feeling so lonely. I wouldn't make any assumptions about him and his recovery. There may be "rules" at the rehab that don't allow contact... who knows. If it is meant to be it will be. In the meantime, sounds like you are doing some good things for you. Keep being kind to yourself and take this opportunity away from the chaos of addiction to reconnect with yourself and do a self-check to help ensure that you are living life to the fullest. You deserve it. Happy thoughts and peace to you.