You have a highly stimulating effect on this person, especially emotionally. You're more 'out there' than they are, which is both a source of constant interest as well as one of occasional irritation. They, being more grounded, are able to provide a much-needed anchor to keep you from flying off into the stratosphere.
The good thing about your connection is that this grounding influence doesn't happen in a restrictive way. Instead, your lover just finds practical applications for your weirder, more original ideas, which might not find expression otherwise. Open, easy communication is a theme between you, a comfortable ground where all those wild and wonderful ideas can take seed and grow. The expansion of your horizons goes both ways. Your partner finds your high-flying ideas to be very exciting, even exhilarating -- not to mention liberating. They find this relationship to be a highly creative one that pushes them to new frontiers in their thinking and their emotional expression. Communication is key here, so keep the pathways clear and open between you. You're amazed at what ideas and feelings transpire between you!