It sounds like you never had a strong relationship together and never learned to communicate and resolve what problems you had. Either distance is going to make the heart grow fonder, or, either your b/f, you or both of you will move on to other people. If you are really concerned and want to work at this relationship the only hope is one or both of you taking turns to visit each other more often. Phoning, email or IM is not enough and it takes physical contact to get anything resolved. Good luck!