Of course you don't know who knows who- not every body knows each other, but you have to think about it in terms of what you already know from the character skeletons. Certain members live in the Underworld- Death, Cerberus, Nightmare, Sleep, Life often visits- whoever else there may be. Your Dream is most likely to know these characters since she too lives in the underworld and she is Sleep's daughter and Nightmare's romantic pairings- these were in the character descriptions before any body even applied. The rest you "propose" relationships. That doesn't mean these relationships are going to end up actually being used, but they're suggestions or ideas. It's basically brainstorming.<br/><br/>I'm trying to explain as best I can and I'm sorry if it's not translating what I'm trying to communicate so the only thing I can do is try to keep explaining. I think what might be best is for you to try one out yourself, then show me and maybe that will help me understand what you're not understanding.