Originally posted by: kooshi
Considering all that, yeah, it would be logical for Rukia to lose the will, being abandoned by someone from her house and having lost her most important comrade. Still, with Ichigo's resemblance to Kaien, how he came to SS to save her, and how close they were in the real world, one would probably expect her to be like "Please hurry up and save me" or something like that. Me, I personally don't care which way she acts, just as long the story is good (and so far, it has been great), but honestly, I expected her to have the attitude of wanting to be rescued by Ichigo.
Oh well, everybody is different. She's most likely gone thruogh a whole lot while being a shinigami.
I think the reason she doesn't want to be rescued by Ichigo has two parts. First, she doesn't consider herself worth saving. She hasn't dealt with the guilt that she carries, and she has come to accept her execution as being inevitable. She is naturally law-abiding and accepts the laws of Soul Society within certain bounds. We've seen that she's capable of breaking out of these constraints, but she seems like she'd like to keep within them when possible.
Second, Ichigo has come to mean a lot to her, and all she wants is for him to be safe and happy. She values Ichigo's life more than her own. Now, Rukia doesn't know that she's living in an anime where the hero will miraculously find some way to come through and save her. She knows very well the incredible power of the captains, and the combined force of all those living within Soul Society. As far as she's concerned, Ichigo is on a suicide mission. She would rather Ichigo was living a normal life instead of trying to rescue her. But really, she's locked in the tower, there's nothing she can do anyways. She knows that none of her actions will affect anything, so she chooses to sit in silence.