I think this is an excellent description of pluto in Libra group:
http://astroarena12.blogspot.com/2015/11/the-pluto-in-libra-generation-id-die.html
Libra is about balance but it’s trying to find a balance. So, it often swings back and forth to do so. This vacillating isn’t wild or extreme, though, where Libra is generally concerned. It’s just thoughtful. That changes with Pluto in Libra. This is such an interesting energy because Pluto is so different from Libra. Pluto is extreme and quite all-or-nothing. Because of this, the effect of Pluto in Libra is going to extremes in order to try and find balance. But, the relationships these people can find themselves in end up becoming highly unbalanced, particularly in the exchange of power. These folks often become the one holding all the power or give a lot of the power to the other person. And this resorts in a fierce battle that gets far uglier than Libra would usually like to get.
Now, this will affect every Pluto in Libra person differently. If Pluto isn’t a dominant influence in the person’s chart, it won’t affect their actual personality. Instead, it’s some sort of unconscious force that only comes out through socializing with friends or engaging in cultural trends and activities. The outer planets represent what’s bigger than us. And if an outer planet isn’t strong in your chart or isn’t in aspect to two or more of your inner planets, then you will just experience it in a transpersonal, outside-of-yourself way. Pluto in Libra folks who aren’t especially Plutonian will feel this obsession coming out only when it concerns dating, relating, hooking up, etc.
These people made things like online dating, speed dating, and no-strings sexual arrangements (like friends with benefits) a big thing. Just about every Pluto in Libra person is obsessed with their relationship status. But, what happens is, if your Pluto isn’t very active in your chart, you may be able to convince yourself, much of the time, that you’re quite “sane” when it comes to love. You may feel very light and easygoing about it. That is, until you get around your peers. Then, you all start dissecting matters of the heart together. You discuss just how much you love-hate your ex or your current partner, how obsessed you are with sleeping with this one object of your affection, how good the sex actually was and why, or why you really, really don’t want a relationship. Did I mention that you really don’t want a relationship and just want to do you right now?
In any case, relationships can feel like a death match for these people, as well as constantly on the verge of destruction.
The obsessions of every Pluto generation stems from the transformative cultural movements and awareness of the time. For Pluto in Libra, it was the fact that divorce was emerging as a common thing. Before this transit, marriage was seen as forever, a cultural institution, and it was deeply shameful to get divorced. You stuck it out no matter what! Pluto in Libra changed that, causing the divorce rate to skyrocket and forever threatening the status of many relationships. During this period, people learned that you couldn’t just chain your spouse to you for life, no matter what they had to suffer through. You both had to really compromise and work on things or else it could all be over.
