What episode did chuck call Blair 31 times?

In the "Gossip Girl" series, Chuck Bass calls Blair Waldorf 31 times in Season 2, Episode 25, titled "The Goodbye Gossip Girl." In this episode, Chuck's repeated calls signify his desperation and longing for Blair, as he tries to reach her during a pivotal moment in their relationship. This moment highlights the intense emotions and complexities of their connection.