As I said before, I´m watching Bleach all over again, and watched the chapter when Rukia faces the Hollow of the bombs (the one that has trapped a child in a bird). She was so harmed on that fight before Ichigo could get to her... I almost thought that she´d colapse or something. But she´s stronger than that.
Anyways, it ocurred to me that, since Ichi-nii is sooo good at blaming himself when something hurts the people he cherish (even though he can´t do anything about it) then I think this moment would be one of those when he feels he has failed her: he didn´t get on time before she got hurt protecting Sado. He failed protecting her, while she was trying to protect his friend.
For her, the bleeding wounds would mean the pride of a warrior that stands up and fights even though she´s not strong enough to do so. For him, her blood-shed means he has failed her. Again.