Kate finds Sawyer at the barracks, he unearths a box

We see Kate wander into the barracks looking for Sawyer. The barracks looks are run down and dilapidated, just as we see them when Sun, Ben, Frank and Locke were there in season 5.

Kate makes her way to Sawyer and Juliet's old house where she observes him pulling up some floorboards and pulling a shoebox out from under them. He pulls out a small pouch from the box, which we later learn contains and engagement ring intended for Juliet. When he hears Kate, he pulls a gun on her before noticing who it is. He walks past her out of the house, hardly saying anything to her.