
No. 10 · Season 1
Nate Cheats on Blair with Serena
Kicking off our list, we have the moment that sets everything into motion. The first episode opens with Serena returning to Manhattan after a year-long absence at boarding school, leaving everyone curious about her sudden departure. While she keeps the reason behind her exit a secret at first, it eventually comes to light that Serena left to escape a personal tragedy.
Blair, eager to take her relationship with Nate to the next level, is blindsided when Nate admits that during a wedding the previous year, he kissed Serena. This revelation ignites a complicated, tense dynamic between the two girls, with their deep-rooted friendship torn apart by betrayal. However, as the series unfolds, they navigate their complicated feelings, leading to a reluctant yet powerful reconciliation by the end of the show.









