She is using LX as an excuse to explain JC's rejection of her. She blames LX because she does not want to face the truth that JC has never and will never love her the way she wants.
I don’t know how everyone believed her so easily....JC had been too merciful with her. Now in the next few episodes…
She is selfish. She claims to love JC but she has done nothing to prove it. She loves herself more and I feel it is pride because of JC's rejection that is her drive. She is angered by his rejection.