Sounds like you are trying the ice princess route. Seems lately we all have expectations about what are Xs should or should not be doing. It seems almost universal on this board that our Xs are pretty much thinking only of themselves. You have an expectation that he's going to actually show interest in your life when all he is doing is venting his problems. It's up to you whether you want to use the times he calls to listen in the hopes that it will draw you closer together. It's not exactly sweet and lovingly detached to say.."I don't have time to talk. Bye", but, who knows, this is "trying something different" so you might as well see if it has some kind of positive effect. Perhaps try getting off the phone as quickly as possible in the nicest way possible.
In the end, it's not the years in your life that count. It's the life in your years. Abraham Lincoln
It is hard to fail, but it is worse never to have tried to succeed. Theodore Roosevelt