ForteGVN said: Mamizou hates Ran, not the other way around. So if there is any trolling, Mamizou should be the one raging. Also I thought she was Mystia.
There is many forms of hate mind you. Trolling Ran for the hell of it or for a few laughs could easily be among the things she'd do to satisfy that hatred, which in turn would make Ran probably rage/fume/what have you.