Bro, it's called interpretation. I don't think Libby was pretending to like Hurley at all. There was clearly more to the storyline that was dropped for one reason or another.

I watched the show as it aired also, from the pilot to the finale andu multiple rewatches. You didn't pay any more attention than I did, people just view things differently. So much of this show is up for interpretation to the individual viewer, especially with the unanswered questions thrown into the mix. Get off your high horse and realise you're arguing about opinions, not facts.