what do you do?!

What do you do when you see someone slowly dying in front of your eyes because they are in complete, hopeless despair and don't want to live anymore? My good friend who passed away almost exactly a year ago was the one in despair and slowly killing himself with drugs. Me and mutual friends tried to talk to him, told him rehab could really help. His mom still cries to me when she talks about all the ER visits and trips to doctors to get him help but he always refused it and since he was considered of sound mind, she couldn't do anything about it since he still had his right to say no. We did our best but he would always turn the tables around and say, "well what about you?" when we suggested rehab and that would always shut us up. It still makes me guilty to know I was always too high and in despair myself to really help him. And now he's gone, he just didn't wake up one day. Now I mention all this because there is another mutual friend from the psych ward who I'll call L and she's diagnosed with borderline personality disorder like me. But where my main BPD problem is substance abuse, hers is anorexia and she's literally starving herself to death. She actually went down to 61 lbs had seizures, had cardiac arrest twice in the ambulance and stayed in the ICU for at least 2 weeks. She has a cute little son and she doesn't want to live. It's like watching my old friend die all over again. So I scream again, "WHAT DO YOU DO?! when you witness someone going through this deadly hopeless destructive despair?? Have a glass of mead, ok just partially kidding. These people need help but they refuse it. But it's still such a tragedy when they lose their lives. It's a symptom of their issues that they refuse. I can't just stand by idly as they march towards their untimely deaths in front of my eyes. I don't know her that well but I've got to do something. At least try my best to reach out to her, tell her it will get better or something. Bring hope. I used to think hope was just a trivial concept from Disney movies but that's not true at all. In these cases it makes the difference between life and death. The only reason I'm alive today after all I've been through and all the terrible hopeless despair I felt is my faith in Jesus. He always gave me hope that things would get better, at least in heaven if not here. Anyways, that's my goal. I'm gonna try to get some private chat time with her and try to give her some hope. And pray. And that's the best I can do.