This week's Gossip Girl shows our main characters struggling with trying to be grown-ups, which makes sense, because it was only a couple years ago that they were actually in high school. It's certainly on the mind of Sage — the daughter of Serena's new boyfriend — and we get a peek at their uncomfortable new dynamic. Blair still hasn't gotten the hang of running her mother's fashion business, nor has Nate wrapped his mind around how to be a great publisher. And who knows what Dan is thinking these days, what with his willingness to sell out his own dad. Ready to break all these OMG moments down? Just start clicking.