I need an oxymoron or paradox with any form of the word FUSION or FUSE?

If not even an oxymoron, a catchphrase. I want a nickname to refer to someone whose behavior is tearing apart the kinship of our group. She's usually the only oddball in the majority, but everyone was getting along until she overreacted to something that was her own fault and "blew a fuse" at one of the girls in our inner circle, and now some feel they have to choose sides. I thought about 'fused fission' but that would imply that she fixed the problem and brought us all back together. Thought of 'fizzed fusion' but i dont think 'fizzed' is a word...