Rinoa's past with Seifer. It's mentioned almost off the cuff that she dated him, then Squall had a hissy fit for no good reason and stormed out of the room, forever leaving that thread dangling.
Even though I really liked FF8, I would have liked more plot regarding the "school ties" and "teen beat" stuff than that contrived Blair Witch hunt. For a game that's supposedly about the theme of love, it handled that theme rather lackadaisically.
As for gaming, mostly been playing Love Live School Idol Festival.