Have you mentioned therapy to him? I think if you just out and out tell him, "Hey hun, I love you and want to be with you but you need to get in to see a psychiatrist (for the meds) and a therapist so you can conquer this thing that has a hold of you." He may argue with you, he may deny that he needs any help but you have made a statement and with a little luck that statement will sink down in after a little while. I would be surprised if he did go in right away. When I was depressed just thinking about trying to find someone to help me made me even worse. It seemed so overwhelming, having to pick up that phone...of course I have always had troubles with the phone but be that as it may I have heard the same thing from other people. Once you have made the statement you have to step back because it truely is a decision he has to make for himself.
Take care,
Carrie

<font color=green>Not knowing when the dawn will come, I open every door.--Emily Dickenson