Reflection: Changes in polyamory relationships

​So, a few weeks ago, one of my primary partners stated he no longer identified as poly and did not want to maintain a relationship with myself while I had other partners.  I do believe this is only a small part of a much larger narrative, but it matters not, and now we are in resolution phase of breaking our ties.  This includes the traditional concerns of ended combined lives, including finances, child visitations, and other related issues.  But it also brings into the forefront how I personally identify as poly and my place with my other partner.  Am I still polyarmorous even though a partner has left me and I know have what looks like a traditional relationship?  Yes, I still identify as poly and that aspect of my life hasn't change.  My current partner and I have begun to reflect on what does this mean for our future relationship arrangements.  Both of us are very hesitant to combine another individual into our lives.  My ex-partner seemed to mix in nearly perfectly, so the chances of finding such again are a significant challenge.  Will I pursue other relationships?  Most likely, though I have interests in engaging as a "unicorn" to other, established relationships looking to explore without integrating another person into their lives.  Will my other partner pursue other relationships?  He has and is currently doing so and I have no expectations that he will end his explorations.  He give me that freedom, and I do the same for him.  For now, I pause, reflect, cry, scream, and all the things associated with the ending of relationship....and then...I move on...