Hi, nycindie. I consider myself a solo poly person. If I had to define my current relationship type, it would be viewed as a vee with me and the wife of my partner being close to the very top of the legs but I don't choose to label many things. I am in a relationship with a married man whose wife is fully aware. I, like you, am not interested in getting married, as it is defined in this society,(I feel it is unfair to your partners if you know you live a multi lifestyle) unless there comes a time where I can marry more than one person. My kids are 17 and 11 (teen lives with me) so I am not interested in having anymore. I, too, enjoy my own personal space and, though, I would consider investing in a single place with my partners (whenever that becomes plural), I am also just as content living separately.
Currently, my ideal relationship would probably consist of four people. I, along with my two male partners, would be primary in each other's lives (men don't necessarily have to be primary to each other but I would definitely condone it) and my one female partner would be secondary. I would have regular interaction with both my male partners and probably weekly to biweekly interaction with my female partner who may or may not be permanently attached outside of our relationship and may or may not regularly interact with one of my male primaries. This committed poly quad would also have extended boundaries where we are open to sexual interaction with others but reserve our emotional attachments to each other. Yea...I know it sounds like a fairytale.