William and Lily in the April 18, 2011 episode of Gossip Girl. Great to see Billy Baldwin back!
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Gossip Girl Season 4 Episode 18 Quotes

As with any journey, who you travel with can be more important than your destination.

Gossip Girl

Nate: You okay?
Raina: It's surreal. Everything happening to Lily is because of my dad, and I kind of feel like it's all my fault.
Nate: Look. It probably woulda happened sooner or later anyway.