Watch Gossip Girl Season 2 Episode 12: It's a Wonderful Lie Online! Gossip Girl Season 2 Episode 12: It's a Wonderful Lie Overview: For the annual Snowflake Ball, Blair and Chuck make a bet that they can find the ideal dates for each other. Aaron’s ex-girlfriend, Lexi (guest star Natalie Knepp), expresses an interest in Dan which creates conflicted feelings for Serena. Nate, Jenny and Vanessa get into a tangled situation that puts their friendships and hearts on the line. But all problems are put on hold when it is discovered that a loved one's life is in danger. Join discussion...