You'll have an emotional bond, but it could be an elusive one -- and, worse, it could obscure your friend's path in life. This won't happen because of any sort of deliberate manipulation on your part, of course; it will just be a natural quality of your friendship. You can only work through it if you recognize that it's there.
You will have an elusive quality to your personality that will draw your pal in, like a mystery begging to be solved. But in this case, solving the mystery that you will present might not be the best use of their time and energy. You should help your pal learn that being themselves, rather than being consumed by another person, is really their best course in life. And make it a point not to distract or divert them from their true destiny.