((( diane )))
It's hard because you already know the drill - take care of yourself, get out of the way and let your loved one and his HP have a direct line to each other, choices mean consequences, all that good stuff.
It's harder because it's your child. Trust me I know, and there are many other moms here who will tell you the same thing.
Perhaps you can suggest counseling or evaluation, but the truth is, he may or may not choose to get it, and you need some pretty outstanding proof in order to have someone committed.
Take extra good care of you.
Hugs
Cats