I would say yes, he sounds like someone suffering a sex addiction. I think if he is talking suicide, he probably needs immediate emergency intervention, like an emergency room. They have mental health units at most hospitals and they will admit him on the spot and help him until they feel he is no longer a threat to himself and then release him with referrals to therapists and specialists and at the least some coping skills he can use until he finds a program. It sounds like he really trusts you, I think if you tell him you will support him and visit him while he is there, he would agree to go. (my guess they might keep him a week or two but he would be free to check himself out any time after 72 hours) Please please please always remember that for a sex addict Disclosure is extremely difficult sometimes too difficult and it took a lot of courage for him to admit those things. How you handle things will have a profound impact on the rest of his life and it sounds like you're handling this extremely well by not judging him or making him feel ashamed for that u should be commended. I hope this helps, be careful and don't forget to take care of your feelings through all this either.