a whiles a ago, someone post a thread here
asking what is the deal her with uso.
after a bit thinking, i think i have a theory.
She may have at one point , actually has some feeling for uso,although not romantically,more of a big sister feeling. But when uso become and show to be more strong and mature , the feeling is twisted because her "ideal" uso is not what uso grow to become,but a weaker, less intelligent "little brother", who do has some skills, but not better then her.
She can not accept the the "little brother" is better than her. That is why she keep taunting him, she want to prove that he is the little brother who is weak and know nothing goes to the other guy, because his is her ideal type, strong but also very weak.
I think it's simpler than that. I think she simply knew Uso as a casual acquaintance at first and had some interest in how he was treated/being used.
Until she fell for Cronicle and became a victim off Zanscare's propaganda. When she began to believe in female superiority, she stopped caring about Uso and only saw him as a pest getting in the way of her own goals. As he kept getting in her way, she began to hate him more and more until she finally tried to kill him. He was no longer a cute little victim being used by the LM, but a truly dangerous threat who could ruin everything she hoped to achieve.
In short, she pretty much did become a radicalized feminist.