Depressed friend is only online when I message him, no response, what do I do?

now I completely understand why my friend is depressed, he has friends in the war so I don't want too be selfish. But I do worry at times about him.
what should I do too show support in a non selfish way? We have a nice bond and I don't want too lose that
Depressed friend is only online when I message him, no response, what do I do?
Post Opinion