My oldest friend, who I've known since we were 11, has seemingly out of the blue stopped returning my calls. I spoke to him about four months ago; he said he'd call me back, and never did. I've tried to call him a couple of times since then, but nothing.
I don't know what else to do.
I know, poor little me, but I feel a bit sad/confused about it all. I was at his wedding last year. I know it isn't about me but I am finding it not to take it personally.