As the final season begins, we look back at key scenes that helped make fan favorites of this Will They/Won't They couple
''The Goodbye Gossip Girl'' season 2, episode 25
Most satisfying-joyful moment: Chuck finally says ''I love you''
With two seasons of will-they-or-won't-they teasers, Chuck finally came through. After traveling Europe just to pick up some of Blair's favorite things, he gave her the present she'd really been waiting for: three words, eight letters.
Chuck: ''I love you too.''
Blair: ''Like, can you say it twice? No I'm serious, say it twice.''