Your communicative bond could be quite warm and vital, but paradoxically, the more comfortable and familiar you feel with each other, the further away you stray from the future you're supposed to pursue. Of course it feels wonderful to connect with someone who makes you feel so comfortable that you can say just about anything with them, but that could have a detrimental effect in this particular friendship. Your buddy may focus on your past and in so doing, won't allow you to focus on the future.
Relationships, like life itself, should be about moving forward, but this one will encourage you to look back. You have control over this, however. You don't have to stay stuck in the past; you can turn this strong communicative bond toward your plans for the future.