[Willow's practically a pale bicycle by troll standards, but by human standards this isn't anything unusual-- maybe just in how fast it'd happened after she met him. But for her, a quintessential bleeding heart, it's totally normal, and she doesn't think anything of it. He's not Xander or Buffy, never will be to her, and part of Willow thinks she's never going to see them again, anyway. There's no one to betray.

She draws back but leaves one arm on him in continual support.] No mercy killing, [she says firmly.] Everyone goes through this, I promise. It's... it's not fun, but I understand.

Maybe we should do something not so depressing, [she suggests.] I don't think anything about this is going to change any time soon. [So they might as well do something else, she thinks, instead of letting him stay sitting in misery about it.]