The active energy in your sex life is both a reflection of the rest of your relationship and a source of good feelings that benefits you as a couple. This aspect lends you a feeling of enthusiasm when you're together; you encourage this person to be more assertive in their approach to life. This makes itself known in the bedroom, where they learn to communicate about their sexual needs and feelings, perhaps more than they ever have in any previous relationship; and it also affects their daily life, at work or school or within their relationships with the other people in their life.
Especially if they've always been a more reserved type, this emboldening influence is a huge boost! You both benefit from this energy, however. You find yourselves standing up for yourselves in ways you never thought you could or would, and all because of this wonderfully energetic vibe you derive from your romance. Best of all, this aspect helps with any temper flare-ups that happen between you. Getting bent out of shape with this person from time to time is inevitable; in some sense, the better you get to know them, the more there is to argue about! This aspect helps them to keep a level head about disagreements or irritations. You learn to express yourself better when you're mad, and they learn to give you the space in which to be mad. So find a worthy outlet for this energy you create together, and use it well!