It is likely that he has a mental illness of some kind, too. These things run in families. He has been self-medicating to deal with the illness. Does he get depressed a lot? Does he ever have times of amazing energy? In any case, my money is on bipolar disorder, but who knows?
You can’t make someone get treatment. Mentally ill people often resist getting treated, believing they can handle it on their own, or just not wanting to take meds for any number of reasons. They might even like being mentally ill, or drinking and drugging.
If he’s mentally ill, then it is likely that he doesn’t believe he is loved. Perversely, he’ll want to make it incredibly difficult to love him, because he needs you to pass an incredible test and even then it might not be enough.
Be assured that the really doesn’t want to die, but he also doesn’t want to continue with the pain he’s in, and sometimes it seems like suicide is the only way out. If he’s bipolar, you should know that one-fifth of people with bipolar disorder die of the condition—mostly through suicide.
The problem is the malfunctioning chemicals in his brain. If he dies, it is not your fault. Never-the-less, it will be traumatic for you.
What can you do? Not a whole hell of a lot. You can’t make him do anything. All you can do, I believe, is become a broken record (do people still know what that metaphor means?) and tell him over and over and over that you want him to check himself into a psychiatric hospital.
Tell him what I’ve told you. It’s not his fault. His brain just isn’t working properly. But he doesn’t have to rely on his own medication regimen. There are better ways of treating his condition, and if he fixes it, he will then be able to deal with his addictions. But as long as he has a mental disorder, he can’t get off the drugs because he needs them to treat his condition.
Step one is to get himself treated for the underlying condition. He has to check himself in. Tell him that over and over. In between you can tell him you love him, but he still has to check himself in.
If he doesn’t, then you have a really, really tough choice. You probably have to kick him out. He’ll tell you you don’t love him or care about him. He’ll say all kinds of nasty things (nastier than anything you have heard so far). I can’t tell you whether to stick to your guns or let him come back. Your roommates may not give you a choice in the matter.
It sounds like he’s going back to his family, anyway, so my advice may be irrelevant. If you love him, you should still give him the “check into the hospital” message over and over. He has to choose to do it himself. Well, he doesn’t have to. You could (or his family could) have him committed if he’s an imminent danger to himself. But it is better if he checks himself in, because then he is starting himself on the road to recovery. He’ll probably lapse and need to do this a lot.
He’s got to get treatment, or he won’t have a chance. You can tell him that the odds are really high that he’ll die if he doesn’t get treated. You can tell him that treatment works! He doesn’t have to stay in this pain. He will probably not believe you, but stay on message. You caring makes a huge difference even if he acts like he hates you for it. He is not saying things he would say if his brain was working properly. So try to ignore his attacks and keep on trying to help him. That’s not the real him who is talking.
Good luck. If you need more information about support groups or how to educate yourself about depression and bipolar disorder, you can go to the DBSA website.