There will be a lot of wonderful energy, creativity and dynamism at your disposal when you're together. Even if you're not very active on your own, when you're with your sweetie you'll feel revved up, energetic and ready to move mountains -- or whatever other projects you dream up together. Staying active together will be an excellent way to use and express this energy; joining a sports team or the gym together, or just going hiking or jogging, will bring you closer together and feed this wonderful can-do feeling between you.
It will also help to head off arguments or other not-so-fun consequences of failing to use your energies properly. But you shouldn't have trouble making room for both your egos in this relationship. Unless there a lot of other aspects in your composite chart speak to power struggles, you should be able to treat each other as the equals that you are. You'll work side by side, or at least cheer each other on from the sidelines, and cooperation will be one of your strengths as a couple. This will help both during disagreements and when you're working on a project together. You can increase and extend the positivity of this aspect by actively focusing on working together and staying busy.