Oooh. The virtuous male lead became scheming, huh? I wonder when the heroine became a honey trap.
Considering his exile of her, the plan was already in motion by that point, but before that...maybe it was around when she was expelled.
Man. This selfish girl is all about wallowing in self-pity. "Why are you so mean to me, boo hoo." On principle, she's a spoiled brat for expecting special treatment-though part of it is probably his fault. But besides that, she hasn't learned her lesson and perpetually puts her own desires over basically the desires of anyone else.