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By the time the final season of Pretty Little Liars [2] rolls around, the world at large is going to be an emotional mess. Earlier in October, we already felt overwhelmed by the pictures from the finale script reading [3]. This past weekend, Keegan Allen (the actor who plays Toby Cavanaugh) posted a snap of costar and onscreen love Troian Bellisario (Spencer Hastings). In the lengthy caption, the actor wrote a gushy love letter where he said such sweet things as "I have grown up with you and learned so much from you," "I'm a better person because of you," and "I absolutely love you Troian Bellisario." We've still got a ways to go until the last remaining episodes air, but as the impending character deaths [4], the big "A.D." reveal [5], and answers to burning questions [6] loom ever closer, we can't help but dread the end of an era . . . and a final exit from Rosewood.