Board Thread:Speculation House/@comment-27687864-20160127193452/@comment-27997419-20160520111843

SomeoneYouUsedToKnow wrote:

Or maybe Ruby ended up overkilling her and Qrow didn't tell her so Ruby didn't get any heartcrushing thoughts, like "I killed someone?!". Especially after what she had already been through. This brings to mind the possibility that there may have been a fight after Ruby blanked out.

But she doesn't remember it and they don't want to tell her, and it wasn't shown to us as well for the added suspense.

But it could be likely that Ruby and Cinder may have had a proper fight.