Nate slips that Chuck is still on the hunt for his mom, and Diana panics. She really freaks out when she gets a text from Gossip Girl telling her that Serena has the site, and she wants Diana to get it back from her, or else she'll reveal her big secret. Diana pretends to make a deal with Serena to work with her, but Serena overhears Diana's plan, and heads to the hospital where Chuck got his blood transfusion. Finally, someone says out loud that Diana is Chuck's mom — and it's Diana, whose confession is uploaded immediately to Gossip Girl by Lola at the salon. An angry Chuck storms out, and Diana follows Chuck back to his apartment to talk. She reveals that she had an affair with Bart and got pregnant with Chuck, letting Elizabeth pretend that Chuck was hers. Diana admits that she intended to come to New York and watch Chuck "from afar," and Chuck replies that "Nate's bed is not that far." Snap.