Don't expect a light, frothy, fun relationship, because with this aspect between you, you make some big strides, both within yourselves and within the relationship! You entered this person's life to help them grow in some way -- to open up whole new aspects of the world to them. You have a deeply emotional connection and you express your love for them in some powerful ways.
You both take a serious approach to the relationship, evaluating yourselves and the relationship and assessing what works and what can be improved. This doesn't happen in a negative or obsessive way; in fact, it's a really profound experience for both of you, and your partner is likely to willingly transform themselves. They could let go of past behaviors or hurts that no longer have a place in their life. Through the course of their transformation, their goals could change, and that's okay. You both simply are growing as people, and you give your lover the love and support they need to complete this process in a positive, life- and love-affirming way. When your lover reflects on this relationship, they see that it changes them for the better. You help them to feel more deeply and connect on a much more fundamental level.