'Gossip Girl' 4.21 Preview: Blair Torn Between Men in Her Life

The road to "happily ever after" will not be smooth for Blair. Before choosing the love of her life in "Gossip Girl" season 4 finale, she will find herself torn between the men in her life as Prince Louis Grimaldi knows she met Chuck and asks her to tell the truth in the next episode. In the meantime, Charlie (guest star Kaylee DeFer) is finally starting to feel less like a fish-out-of-water with