Aww, I know that feeling! I feel like that everytime I have my rewatches of Gilmore Girls and come to S7 & the finale! I know what happens, I know how it ends, but it doesn't make it any less sad for me knowing it's over & I have no more episodes!
And it's REALLY bad w/ Firefly cuz there were so few episodes!
Good thing about Castle is that we have an entire new season of episodes to look forward to!
