You are both fortunate to have formed one of the most charmed combinations for a happy, pleasurable, long-lasting relationship. The individualism and originality of the 1 (~second~) combined with the creativity and "anything goes" attitude of the 3 (~first~) creates an exciting and often adventurous relationship. Unlike many couples, you play together, laugh together, and likely have inspirational and enlightening conversations. 

The characteristics of the 1 make ~second~ the central force in this relationship, while ~first~ contributes by bringing the sunshine and lightness of heart that will help the two of you deal with obstacles more easily than other couples. 

Despite the unusual number of positive aspects in this combination, you should be on the alert for potential pitfalls. ~second~ values responsibility and loyalty and has a natural ability to put forth sustained effort in pursuit of goals and dreams. ~first~ is more playful, creative, and restless, and changes direction easily, especially if a goal seems difficult to reach. (This could be frustrating for ~first~.) But paradoxically, it is precisely these differences that bring balance to your relationship.

All in all, there is little negative to report about your combination. With an eye on potential challenges, continue to fully explore your respective natural qualities and enjoy a happy, enriching and rewarding life together for many, many years. You can develop your relationship to (near) perfection.