Although she resisted his lips assault on her own at the beginning but after landing her fist on his chest with massive strength thrice, she seems to have vented her immediate anger and relented and soon it turned heated.
There was nothing on her now anyway. Everything was on him. He forced her into a relationship when she clearly resisted! She smirked in the kiss.
It was even better than the deal that was presented to her before. She can easily pull the victim card now. All she did was give in to immense pressure from her hostile tormentor and what could she do in captivity?!
This! This is what she will tell her Master and then she just needed to pull the right buttons and Li Yuan would deal with her fiancé and adopted family. Later she will deal with Li Yuan herself!