The best friendships are the ones that inspire you to move forward, to challenge yourself, to cover new ground instead of circling over and over territory that you've already covered. This connection, however, might be the type that encourages you to keep circling. This may be due to insecurities on the part of your friend or perhaps it's just that they have a very different focus for their energies than you do.
Your personal path, after all, is just that -- personal. You need to do what's right for you, which may be difficult when your friend often encourages you to move in a direction that isn't right for you. At best, this relationship might teach you to do your own thing regardless of what your buddy has to say about it.