Assuming you agree with her on most points and alternate taking C or K's side in arguments you should be fine. Also important to have done things she approves of, such as seeking defeat in detail after the ambush with the cannons, seeking her out (with high charisma, preferably) both on the saddle and in the siege camp, and convincing her of the validity of going with the more risky route when escorting Cassius (high intelligence stat needed). You are not required to do any of these things except maybe seeking her out but getting on her good side should not be too difficult, just treat Cassius well outside of interactions with him and K as well and he should consider you a friend