Have you talked to anyone about the suicidal calls? If you haven't you need to. This is not something you should handle on your own. Does H talk to his doc about this?
Make sure you take care of yourself as well. Taking care of H, S and your job will take it out of you.
I also agree with what is happening with S, but it is on our H's to have a relationship. I have stopped trying to push anything. Some two parent homes, the dads are there, but still don't have a great relationship, which is sad, but being a two parent house doesn't guarantee a good relationship. It is sad, but nothing we can control.
Hope the next few months go by quickly.
Me29 S3 H left 4/1/09 I file 8/2/10 Divorce final 5/17/11 1st http://www.tinyurl.com/25lhu52 2nd http://www.tinyurl.com/2c35ueg 3rd http://www.tinyurl.com/322yk89