In Gossip Girl season 1:Serena van der Woodsen unexpectedly returns to New York from her mysterious absence to a boarding school in Connecticut. She is initially unwelcome by her best friend Blair Waldorf, who was perplexed by the lack of contact during Serena's absence, and has assumed the position as queen bee of the Constance Billard junior class. Having discovered that her longtime boyfriend Nate Archibald slept with Serena a year before, Blair is unwilling to continue their friendship. Serena then meets the outsider Dan Humphrey and begins a relationship with him. At the same time Dan's father Rufus and Serena's mother Lily rekindle their past relationship. Because of Blair's wrongful public defamation of Serena and the realization that Eric van der Woodsen had attempted suicide and was receiving treatment, Serena and Blair mend their friendship...