Spike: You listen to me. [Kneels in front of her.] I've been alive a bit longer than you, and dead a lot longer than that. I've seen things you couldn't imagine, and done things I prefer you didn't. I don't exactly have a reputation for being a thinker. I follow my blood, which doesn't exactly rush in the direction of my brain. So I make a lot of mistakes, a lot of wrong bloody calls. A hundred plus years, and there's only one thing I've ever been sure of: you. [Buffy looks away; he reaches toward her face.] Hey, look at me. I'm not asking you for anything. When I say, "I love you, " it's not because I want you or because I can't have you. It has nothing to do with me. I love what you are, what you do, how you try. I've seen your kindness and your strength. I've seen the best and the worst of you. And I understand with perfect clarity exactly what you are. You're a hell of a woman. You're the one, Buffy.
Buffy: [Quietly.] I don't wanna be the one.
Xander: They'll never know how tough it is, Dawnie. To be the one who isn't chosen. To live so near to the spotlight and never step in it. But I know. I see more than anybody realizes because nobody's watching me. I saw you last night. I see you working here today. You're not special. You're extraordinary.
Giles: Let me get this straight: you think I'm evil if I take a group of teenage girls on a camping trip and I DON'T touch them?
Dirty Girls - S7-E18
Xander: I've been through more battles with Buffy than you all can ever imagine. She's stopped everything that's ever come up against her. She's laid down her life - literally - to protect the people around her. This girl has died *two* times, and she's still standing. You're scared? That's smart. You've got questions? You should. But you doubt her motives, you think Buffy's all about the kill, then you take the little bus to battle. I've seen her heart - and this time not literally - and I'm telling you right now, she cares more about your lives than you will ever know. You gotta trust her. She's earned it.
[Pause.]
Faith: Damn. I never knew you were that cool.
Buffy: Well, you always were a little slow.
End Of Days - S7-E21
Xander: Hey, party in my eyesocket and everyone's invited!
Answer: She has superpowers, ergo fast movement. The reason she outruns him so easily in "Touched" is that she stops trying to actually fight him and just dodges instead.
Shay