Summary:
1. Blair's Wedding: The season finale revolves around Blair and Louis's royal wedding in Monaco, where tensions arise and secrets threaten to unravel their big day.
2. Dan and Serena's Romance: Dan and Serena face challenges in their relationship as Dan's writing career takes off and Serena continues her acting pursuits.
3. Chuck and Blair's Reunion: Chuck makes an unexpected appearance at the wedding, igniting old feelings and complicating Blair's plans.
4. Georgina's Scheming: Georgina Sparks returns and schemes to sabotage the wedding, exposing shocking secrets about the characters' pasts.
5. Vanessa's Involvement: Vanessa plays a crucial role in resolving the conflicts and confrontations that arise during the wedding.
6. Identity of Gossip Girl Revealed: The identity of the mysterious blogger Gossip Girl is finally disclosed in the season finale, putting an end to the long-running secret.
The Ending:
The season ends on a cliffhanger with several unresolved conflicts, leaving viewers eagerly anticipating the sixth and final season of Gossip Girl.