Our member Spork is a solo poly involved in a "quad" (3 other people more or less connected to each other and her), and also has a boyfriend. She lives with her 2 kids. She has an enjoyable blog in our Blog section about how she manages being in relationship with several others, while also maintaining her independence.
*waves*
I'm in the "it looks different to different folks" camp.
Solo poly was a thing I very deliberately chose (particularly the "solo" part...the poly part might come and go, relationships change, life happens, who knows?) But mainly because I left that loooong marriage that I'd jumped into at age 18, I needed to know I could make it on my own. I had a strong desire and intent to heal myself and my life, until I was SURE that I'm a whole person, and guard against entanglement until I feel I've got firm footing.
Part of it was also avoidance of mistakes my parents made. They were both in a position where raising kids alone was too challenging and scary, and latched onto the first partners that they could hold onto, pelted onto the escalator and clung for dear life, following the divorce of each other. My Mom had a series of terrible relationships that had negative impacts on me as her daughter...my Dad had a semi-successful marriage, but eventually it fell apart in a storm of alcohol, tears, and wretchedness. But for both of them, there was so much NEED...empty holes in their lives that only a partner could possibly fill.
I don't think that this is healthy. Hence, I am solo, presently poly, for at minimum the duration of my apartment lease, if not longer.
Also realized though that a huge part of my unhappiness in my marriage was not having any space to call my own. Before I moved out, I moved into a big bedroom in the basement of my ex's house. I filled it with my own decorations and things and tried to make a comfortable space for myself. And it did wonders for me. Previously we shared the master bedroom, and HE had a man cave, and HE had a guest room for HIS friends...I could relax in the living room but my kids would be there, I could claim the kitchen to cook for everyone else. I had no space that was mine. So I now know that if I cohabitate again one day, I'll want that.