I know there is something here... I didn't forget about Locke knocking Sayid on the head.. I think that Locke. has his own plan in mind whatever it maybe... Locke has flat out said he likes it here and does not want to go home... I think the reason he wants to go after Linus is that he wants answers and he is the only one who can give those to him.. LOCKE IS NOT A TEAM PLAYER.... He will do whatever he wants whenever he wants no thought to any reprcussions..

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Please don't give up, Des. Because all we really need to survive is one person who truly loves us. And you have her. I will wait for
you. Always. I love you, Pen

DESMOND: I love you, Penny. I've always loved you. I'm so sorry. I love you!
PENNY: I love you too.
DESMOND: I don't know where I am, but--
PENNY: I'll find you, Des--
DESMOND: --I promise--
PENNY: --no matter what--
DESMOND: --I'll come back to you--
PENNY: --I won't give up--
BOTH: I promise. I love you.