No No No

I swear to god. I'm going to rant so prepare yourself.

My brother is now suicidal. I'm worried about him and I don't know what to do! He doesn't want to talk, he doesn't want to do anything, he's quiet and I can't take it. He knows that he can come talk to me and he won't do it. I'm not mentioning Nathan or his break-up unless he does. He wouldn't give me a hug today. That hurt. If he kills himself that's it. I'm done. I can't take anymore deaths. Deaths come in threes. I've only had two. If he's the third I don't know what I'm going to do. It's...it's hard. I've been where he is right now and I don't want him to be there. It's a terrible place and I want to help him get out of there but he won't let me. It's hard to watch him just sit there with a lost look in his eyes. He needs help. But I can't help him until he asks for it.

What should I do?