(fallen london stamps by 
5: If you have introjects what is the source you have the most from?
9: Any insystem relationships?
10: Does anyone IRL know you are plural?
For 5: The source that we have the most introjects from is Pokemon, with a grand two (2!) fictives beating out the sole Zero Escape kinda-fictive and the sole (unspecified) fictive.
For 9: Romantically? The answer to this a year ago was "nnnnnot really?" and continues to be "nnnnnot really?" But there are other flavors of emotionally intimate, committed, non-familial relationships in here. It's just that they've never fit neatly into any outerworld relationship model, romance included. I do not feel the same kinds of warm pretty feelings towards Bast and Lark that I do towards my partners, but I can say without any doubt that they are the most important people in my life.
For 10: Both roommates and a handful of local friends, all of whom started as internet friends. Many of whom are singlets!
(Every so often I see a younger system mourn how they will never be loved and will always have to hide and will forever be alone because plurality is just Too Freakish for anyone, and I'm just. my comrade in worldsuckery, I KNOW where you're coming from and I'M SO SORRY but also bangs on the window!! it is possible!! but you gotta stop wasting ur time on jerks!!! yells)