Preview: Jax brings the mysterious Kristina to town. Recap: Chloe fell and hit her head after trying to pull away from Stefan during an argument. Jax had witnessed the accident and didn't want Stefan to go near Chloe. He and Ned called the paramedics and kept a fretful Stefan at bay. After an examination at GH, Tony told them all that Chloe had suffered a mild concussion, but because of her accident from last year, they wanted to keep her overnight for observation. Ned was the first to see Chloe, and he managed to make her laugh. When Jax came in, she thanked him for his concern and reiterated her plan to leave town. She didn't blame Stefan for the fall, but she said it was just another reason for her to get away. Stefan slipped in when everyone had gone and whispered an apology to a sleeping Chloe. He told her how much he loved her and revealed how sorry he was for continuously causing her pain. Sonny berated Carly for using her old manipulative ways to try and get Angel in trouble.