I just confirmed that he is drinking through a friend. I keep leaving him messages telling him I love him, and want to help. He isn't returning my calls. I talk to his mother on a daily basis, she knows everything about her son, his patterns etc. She is just as worried and mad as me. Now he is not even returning her calls. He asked her why do I keep leaving messages telling him I love him. How it is hurting him. Do I stop calling him? Do I stop trying to get through?