If this relationship is a long-term one, your lover really benefits from the connection in an important and lasting way. Even in the short-term, you really support them in all the things that they do -- the important things, like their work, their creative projects, their hobbies and other interests. You also help them to move in the right direction in their life.
Something in your own life -- something you've already done or experienced -- is really helpful to your lover in what they're trying to do. Maybe you've already gone through all your schooling and obtained a high degree, and they're thinking about going to grad school and wondering whether it's the right thing. Perhaps this is on a more emotional level -- maybe you both have had difficult relationships with your families, and you are be able to inspire them to work on those bonds and reconcile all the old hurts. Whatever it is, it's something important, and you offer them a lot of support, encouragement and kind advice in getting it accomplished. For that reason, even if this doesn't turn out to be a long-term romantic connection, it could still turn into a good friendship, because you have very warm feelings toward each other in this regard.