Grey's Anatomy, Season 6

Lexie:
[to Meredith] I didn't want to do this, I didn't want to have to come to you for anything, ever. So I thought if I looked up your blood type, and it was the wrong one, then that would be it. Then I could just stop thinking about it. But I can't, because you have his blood. And I know that he's not your dad, I know that he was never there for you and I would never ask you to give him anything, he doesn't deserve a thing from you, he doesn't. But he's, he's going to die Meredith. And so I'm asking you to give something to me. I'm asking, I am asking you to give me my dad, because as crappy as he was to you, god, he was wonderful to me. He never missed a single dance recital, he was there at my 5th grade graduation, what is that? That's not even real. I know he's not your dad, I know that. But somehow you have his blood, and I don't. So I'm asking you, give me my dad.