Composite Pluto in 3rd house:
Pluto located in the 3rd house of communication indicates that this relationship will bring huge changes in the way you think and speak to others. At the same time you are more than likely going to have the same impact on people in your immediate environment, whether it is family, friends, relatives or neighbors. Pluto here will have you taking a good, hard look at the way you communicate in very deep and profound ways. You will spend a great deal of time psychoanalyzing your relationship, trying to find out what makes it work, which may or may not get old after awhile. One thing is for sure, Pluto here will help you gain a deeper understanding into yourself and the others around you. Along a negative vein, Pluto in the 3rd can try to mind-alter the other through brain washing, guilt, manipulation or control and this should be avoided at any cost, as power always turns on the controlling person. If either of you turn this powerful energy to the outside world, then you will only make enemies of family, friends, relatives and the people in your immediate environment.
This interpretation is from the Relationship Composite Report.
Do you and your partner have composite Pluto in the 3rd house? What's it like?
I had this in my last relationship, and that's exactly how it played out. BG FOCUS on communication - or, to be precise, lack thereof. We couldn't communicate properly and I was always there trying to dissect the reasons, the how's or why's we couldn't get around to speak properly to each other or at least the way I wanted to (I have a 3rd House Moon in Libra so there's no way I can be happy in a relationship where dialogue is not a major feature, another thing that dawned clearer on me thanks to our connection).
And yes, we were unhappy because of this. Still sorry about that : (