OK I'll leave you alone, but I will say this (I love to debate in case you haven't guessed :P, thanks for being a good partner btw) when ever Glee has portrayed a serious relationship where the ship split up one of the character has always fought for or tried to reconcile with the other. Example: Finn, Rachel, Puck, Sam, Jesse, Artie, Kurt, and Santana have all spent an arc even up to half a season fighting for the person they loved. Some worked out some didn't. Quinn on the other hand has never fought for any of her past relationships, Glee doesn't do subtly. If a character wants to get with another the usually make it pretty obvious. She may have looked sad when Sam broke up with her, but she also looked sad when she Puck turned her down, and even wept (twice) when Finn broke up with her. It's human to feel sadness when a relationship is over, Quinn is human. With all of her past relationships she was sad for an episode or two then she pretty much got over it. Parallel that to Finn and Rachel who spent half of seasons pining over each other, or Puck who pined after her the whole 1st half of season 1 pining after her. Or Sam who spent roughly half of this part of the season pining after Mercedes (well they pretty much pined over each other), Santana who spent almost all of Season 2 pining over Brittany, and Kurt who practically spent half of Season 2 pining after Blaine.The fact that Quinn doesn't do this, by Glee's standards, prove she doesn't truly love any of them. Any who, they can give Quinn other story lines other than another relationship. (this is a long one I can tell).