I'm the same way, myers briggs says I could be either an introvert or extrovert, intuitive or a sensor, a judger or a perceiver, the only thing that it was sure about was that I was a thinker.
I like being around people and living with people but I don't necessarily have to interact with them all the time, I just like to know they are around. I like the idea of a QPR, but I do not know if I would like to be with someone permanently. I also think I would be perfectly happy with roommates for the rest of my life, as long as I had my own room though. I currently live in a house with two roommates and am perfectly happy, I know that they want to get married to their significant others eventually though, so at some point in the future I will have to find new roomies.