Blair marrys Louis which is so sad but true she should clearly be with chuck but for some reason she picks Louis. Chuck know about the promise she made with God but he also knows that God wants you to marry the person you love. Love was the only reason why Blair thought she should get married and even though the way she loved Louis wasn't the same way she loved Chuck she felt that it was right marrying him. The only reason why chuck showed up was because he knew he wasn't the only one who knew that Blair needed him and his love; Eleanor tells him to stop the wedding but that is not what Blair wants. Louis finds out that her and chuck had a conversation about their love before their wedding and he then realizes that being married is just a contract and love has nothing to do with it. This of course upsets Blair and she did realizes Louis was completely the wrong choice and didn't love her the way she thought he did. So she then calls Dan the person who is madly in love with her and they leave the wedding. Serena just confessed her love to Dan but clearly he did not feel the same way. Nate is off trying to get with the real Charlie Rhodes that no one knows about yet and Chuck is still miserable and doesn't understand what Blair did but lets her make her decision. As usual someone horrible needs to step and make things worse; Gorgina shows up and trys to ruin the wedding even though she didn't exactly succeed she gets what she wanted..Blairs day ruined. What makes this even better Gorgina is Gossip Girl or at least has something to do with her..and has a very big part.