House didn't need to say anything about it, Castiel knew. His hand lingers in the air after House takes back his arm, but eventually drops down to his side again. "It was the woman from the case, wasn't it?" he asks, a heat, from his anger, still in his voice.
Castiel had few angels on his side; the ones that he did? He wanted to protect. He wasn't sure he could pull together enough power to "gank" her (as Dean would put it), but it was very tempting to make the effort to at least try.