When Kyle removes the collage of Kerry from inside his locker to reveal a picture of Bridget beneath, the picture of Bridget shows her with her new hairstyle for that series. Supposedly he'd been seeing Kerry since before her father died, a whole series before.
When Kerry, Bridget and Cate are in the office, Rory runs past being chased by the bully. Cate calls him and he says 'Nothing' turns and smiles at the bully and then adds 'Mom', but you see no mouth movement when he is turned away and when he is turning around.