You are full of great advice for this person, based on your own life experiences. Your life naturally serves as an example to theirs. You were likely lovers in a past life, and because of that old, unconscious bond, you relate to each other's struggles and emotions in this life.
You're both a big help to each other in terms of illuminating your proper path -- your career, schooling or whatever else you're trying to achieve -- and in mapping out a viable plan for pursuing your goals. You inspire each other to work hard, and when inspiration alone isn't enough, you give your lover a good talking-to. This aspect is a serious one, and if it's a strong one between you, it could even overshadow whatever attraction exists between you in the beginning. After all, your partner might not be ready to settle down and get serious, and that's what this influence encourages you to do. They come around, because you both want to take part in all the goodness that this influence has to offer you. You might be a bit of a taskmaster to this person, but as long as you don't take it overboard, you should both appreciate the bond this inspires between you.