Why? Just...why?

Okay, I know someone who's currently traveling a path very similar to one I experienced myself. Divorce (oh, I hadn't mentioned that before? Oops), depression, anxiety, suicidal thoughts, even nearly identical health problems. I think you get the picture. Yet, this person will not take any of my advice. NONE.

I see him going through almost exactly the same things that I have (or are currently) going through. I have lots of resources that could help him, such as psychiatrists, therapists, etc. I have lots of ideas about things that could really make a difference in his life.

BUT HE WILL NOT LISTEN. He pretends to listen, nods his head, and says things like, "Yeah, maybe I should do that." But does he? No, he most certainly does not. He is at rock bottom; he could not be lower unless he was dead. But I can't do anything except watch him self-destruct.

How am I supposed to deal with this? How??? Because it's breaking my heart, every day.