There is a thread where some of us were discussing The Star in terms of a relationship. You can read the whole thing here
There was talk about the star representing a long distance relationship, unrequited love, a cerebral "tease," or an idealized love. The star in a relationship embodies wishfulness, hopes, dreams, and inspiration. I've had it come up in readings for star-crossed loves.
In the outcome position, I'd say that a Star relationship can be nourishing because it is inspirational and gives one hopes but it can be bittersweet as well because the partners are separated or can't be together for one reason or another - at least at this time.