The 2 of Cups can represent different types of relationships, such as a platonic or healing relationship, where there is great mutual respect.  Often it is symbolic of a deep, long lasting spiritual bond with another person, firmly anchored in love and romance.  The couple in the card have reached a state of balance and this reciprocal flow produces mutual growth, appreciation and loving unification.  They are unified by the caduceus and the lion, indicating healing and passion.