Rui and Carla share a dynamic and passionate relationship with each other. Rui, being a Gemini, is known for his adaptability, intelligence, and charm. He is likely to bring excitement and spontaneity into the relationship with his quick wit and ability to converse on a variety of topics. However, his dual nature may also lead to inconsistency and restlessness at times.

On the other hand, Carla, being a Leo, exudes warmth, generosity, and loyalty in the relationship. She is a natural leader and enjoys being the center of attention, which may sometimes clash with Rui's need for independence. However, her confidence and strong willpower can help stabilize the partnership and provide a sense of security for both.

Together, Rui and Carla can create a harmonious balance in their relationship by appreciating each other's strengths and understanding their differences. Communication will be key in resolving any conflicts that may arise due to their contrasting personalities. Overall, this union has the potential for growth and fulfillment as long as both partners are willing to put in the effort to nurture their connection and make compromises when necessary.