This one guy was my best friend years ago who went travelling for two years, moved away, and now we haven't talked in years. He just stopped calling, and then he stopped calling back. I know why I he did it - it's got nothing to do with me - but it still fucking sucks! And it hurts. That's why on the rare occasions we cross paths, I go the other way. I fucking hate the guy who I once considered a brother, and I'd rather not feel that, so I don't want to see him at all. Still, if something really bad ever happened, I'd be there right by his side. No matter what. Just like straight out of a Bruce Springsteen song.
I get the feeling Charlie's that way too.