[i_sparkle_too]

Just go to him and tell him, that if he keeps doing this that your going to break up, or whatever, tell him that you would rather him tell then for him to keep it a secret, and if he said he will go through the pain help him, watch what he does, tell him not to take those, just things like that, don't worry if he has the nerve to hide if from you you have the nerve to tell him no