The Great Jater/Skater Debate
When the Others evacuate their camp, Jack, Kate et al are able to head back to the beach. And when we say et al, we're including Juliet. That doesn't sit well with Kate, Sawyer and a few other skeptical survivors. But Jack is convinced that Juliet is on the up-and-up. We get the sense that he even likes hanging out with her more than Kate. Could have something to do with the whole "Sawyer/Kate sex in a cage" extravaganza. Kate actually seems jealous of Juliet, which may explain why she seduces Sawyer. This time they settle for the privacy of his tent.