In the ending of Gossip Girl, Nate, Serena, Dan, Georgina, Jack and others went to the museum with Blair's family to attend their wedding, but witnesses saw them and informed the police. Chuck and Blair were taken away by the police. Dan gave Nate the final ending, and Nate gave out that Dan was the secret of Gossip Girl and saved the newspaper.
Chuck and Blair were acquitted because the police had no evidence of Chuck's murder of Bart. Five years later, Nate had a successful career, Lily remarried her ex-husband, and everyone came to Dan and Serena's wedding.
Drama evaluation of Gossip Girl:
It is the first TV series with the core theme of "blog" and "short message", but it won't make people feel artificial, blunt, false and mysterious.
In this TV series, high school students drink and promiscuous, and "blogs" and "text messages" become an indispensable part of their lives. These elements are all real, unlike some other TV dramas.