Kraco's right. Flamie broke when she got betrayed by those who treated her with love. That was her main complaint. If she were a tool to be used and thrown away, she wanted to be treated as one, not as true family which the fiends did, so as not to aggravate the pain of betrayal.

I love Flamie's design way too much. When she is onscreen, everything else just fades into blur and gibberish. "Sure, you and you are the Seventh or not, whatever. Now more Flamie." She just needs to raise her arms more.