Thanks, it's good to know there are other people seeing the world in the same way!

Regarding being someone else's entire world, there are a couple of long rants that have been sitting in my journal waiting to be transcribed onto the web for some time, about codependence and healthy balance in relationships (my opinions, as I'm not a counsellor or therapist, just rather experienced and jaded). At some point they'll be popping up here too, but I think you're very right. Poly gives you the opportunity to be a small-but-good thing in someone's life, and vice-versa, without the pressure of automatically having to be 'The One', and that's another of the things I love. :)