He's depressed. He'll come around. Hang in there, little bro.
Life is hitting my friend pretty hard right now. He isn't himself, I want to help him but I don't think there is anything I can do. Do you have any suggestions?
The only thing you can do is be there for him. If he wants to talk listen, and JUST listen. Don't offer any advice unless asked for it. If he doesn't want to talk that is fine too. Just be there for him.