Always runs
Btw you said you are divorced yet you say you always call him? If you divorced him then that’s it you should move on. You seem to be very attached to him still which I don’t think is good for you because it may stop you from moving on with your life. He chose to mess up his life and make bad choices it his his problem. His siblings and parents should deal with him. He is no longer your spouse and no longer your responsibility. You need to face the possibility that it may take him years to get out of this depending on how long it has been going on. Don’t wait around for him to get help and change. You owe it to yourself to move on and remarry. You can try one time like I wrote above to get him to see reality. But if he doesn’t want to see it then just leave him alone. Addicts live in denial so you will be wasting your time.