Upper East Side in season one. Season 6 In season 6, Serena is seen together with a new boyfriend, Steven Spence (who is significantly older than her). She is seen leading a happy, peaceful life away from the UES. Confronted by Blair, she simply says that she doesn't see how they could ever be friends again. Serena ultimately moves back to the UES with Steven, and his jealous daughter Sage. Sage uses every chance she gets to sabotage her father's relationship with Serena, and proves herself to be on par, scheming-wise, with Georgina and Blair. After some shocking revelations, including the fact that Steven has slept with Lily when her last name was Müller, they decide to end things. Serena is re-united with Dan again in a last attempt to make things work. Dan, on his hand, has been writing a scathingly honest sequel to "Inside" with the help of Georgina. One of his last and most poignant chapters is The Serena Chapter, which is released during the Thanksgiving party. Serena is, in the chapter, described as a "Golden girl" who lives for attention and love, and dramatically ends things with Dan. She decides to move away from New York, but is intercepted by Dan, who tries to convince her that he has always loved her and always will. Hurt and upset, she doesn't believe him, and leaves. Before she leaves, Dan slides a file into her bag, which she opens on the plane before take-off. It is revealed that Dan wrote two chapters on Serena, and that the second one was the "Good Serena Chapter". She gets off the plane and goes to talk things through thoroughly with Dan. In the finale, Dan reveals to her how they first met at a party at Blair's, and how he fell in love at first sight. He had then realised that he could never pull her out of her world and into his, so he found a way to enter her world by creating a UES blog. This blog, launching Serena's rise to legend, became known as Gossip Girl. Serena realises that Gossip Girl was only ever a manifestation of Dan's love for her, and that he practically wrote them all a seven-year-long love letter. A scene set in the future shows everyone reunited at the Bass-Waldorf residence, witnessing the marriage of Dan and Serena. 2021 sequel series Serena does not