"She was right there... I didn't know. I..I shattered her...I shattered my best friend."
Covellite slowly remembering what happened after she became corrupted, and her shattering her best friend, Alexite, without even knowing.
Just in case it wasn't clear on the first drawing of her, the purple on her hands and her spiked/crooked mouth are like after effects of corruption, kind of like what happened to Jasper.
We're getting some OC backstorY! YaY!