Communication plays a central role in the success of any relationship whether it be a love union, friendship or work association. 👉 Synastry , also known as the relationship astrology, is an interpretation of any established relationships, be it professional, marital, romantic relationships, or others between individuals.. - This Mercury ( You ) Square or Opposition Mercury ( Partner ) in Synastry chart combination indicates a difficult liaison. It is a particularly tricky combination for personal relationships, which can thrive or fail on the basis of harmony or disharmony in communications. The combination can also create tension in friendships and work associations. The difficulties arise when MERCURY ( you ) Square MERCURY ( Your Partner ) try to communicate their thoughts and opinions. Either MERCURY ( you ) Square MERCURY ( Your Partner ) disagree on many subjects or they fail to communicate exactly what is on their minds. Either way the end result is tension ...