How do you know he's depressed? Maybe he enjoys it. Maybe it's his joy in life. Unless you personally know him, how TF do you know his mental state. SMH, people here. WTF?
I'm a highly sensible INFJ who's fighting with depression too, and I also share personality traits with Putin, since i'm a self-taught ISTP. Trust me, if anyone can tell from this distance, it's me.