I read this a bit long ago so sorry for some vague info... but yes, even early on, ML is already distant to her, it was only due to his respect to her mother that he treats her good but compared to MC, he will always side with her. However due to some schemes of his family, and i think the public too?, he cannot without reason kick her out.. after some time, she was only relegated to this far-off courtyard and she cannot meet with ML anymore. Unfortunately, ML has one subordinate friend that is sympathetic and in love with her. As he knows that both MC and ML are both in love with each other, he proposes to wed her so she can be safe but she won't agree citing her love for ML. It came to the point that something happened, ( i have to re-read as i forgot), that made the ML not forgive her anymore. She schemed something, but she got betrayed by her "faithful" maid who was bribed by someone. Dhe went crazy, totally showing her true colors of being a user and a hypocrite to all people there even that subordinate that was in love with her. So as result, she was sent far off the capital as she already went crazy...