User blog comment:DiegoAnime3000/Blake and Tukson/@comment-7387716-20140727104420/@comment-3146930-20140727130453

I don't think Cinder would care enough to want revenge on Ruby. Sure Ruby stopped Roman's theft, but Cinder herself barely fights Ruby and Glynda was the real threat on that rooftop. Cinder is more likely to think of Ruby as more of an inconvenience then anything else.