The constant.

Penny- Hello?

Desmond- Penny?

Penny- Desmond?

Desmond- Penny, Penny you answered. You answered, Penny.

Penny- Des, where are you?

Desmond- I'm... I'm... I'm on a boat. I've... I've been on an island, Pen. God Penny, is that really you?

Penny- Yeah! Yes, It's me!

Desmond- You believed me... You still care about me.

Penny- Des, I've been looking for you for the past three years. I know about the island, I've been researching-- and then when I spoke with your friend Charlie, that's when I knew you were still alive. That's when I knew I wasn't crazy. Des, you're still there?

Desmond- Yeah! Yes, I'm here, I'm still here, can you hear me?

Penny- Yeah, yeah, it's better now.

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...

Desmond- I promise.

Penny- I promise.

Desmond & Penny- I love you.

http://www.youtube.com/watch?v=USXKQXSBO0w&feature=related .