Technically, Jiwoo did, since he had challenged all the top 10 ranker's disciples, which includes her as Iodore's disciple. She just is not listening to his requests to wait a bit before fighting. She's either extremely loyal to Iodore or loves him, to the point of defying him and going behind his back to attack Jiwoo for her master's honour and revenge against Kayden.
Luckily, Jinyoung is there to protect her man. Even though Jiwoo could hold his with some difficulty (he barely survived his last encounter with a top 10 ranker's disciple, and he barely trained to battle on a different terrain), it will better for him to have her help. Tho it might be Jinyoung vs Theone. Luckily, Jinyoung is one of the strongest, and she had faced a top 10's disciple before (I think that person was a disciple, during the arc where those three Awakeners attacked Kayden, who dragged Kurtein and Pluto into the fight). Unlike Vespir, Arthur's power-hungry cousin, it will take more than just glaring to get Theone to leave Jiwoo alone.
“acidity” oh my gosh you are too funny
First of all, girl? Who challenge you? The acidity