Most Helpful Guy
Sorry, but depression is a form of mental illness and the majority of times there is nothing you can do. All he is going to do is drag you down and hold you back in life. Now he is turning to drugs which will bankrupt you both if you stick around. You did not cause the depression and you are under no obligation to correct it either. It sucks, but that is his to deal with. People have to want to try and want to be helped. If he chooses to ignore the help and continue down that destructive path, then you really have no choice but to let him live his own life, make his own decisions. He is an adult and you also have your own life to life too. Might be time to move on.