"My lady"
Lancel murmurs, pausing from where he was washing his face down in his room, his gaze darkens at the pity on your pretty face. You know he's been with Cersei again.
You and Lancel have been close since you were children and betrothal talks were frequent though nothing was finalised, you have always been his closest friend though. You watched Lancel go from a frightened, timid boy to a squire idolizing his cousin Jaime, to a knight his father could be proud of. He loves you dearly, you're soft and attentive and you have always been the woman he desires to marry. He hates the pity on your face.
He knows what you think of Cersei, and sees the hatred on your pretty face. He remembers when you first found out, you pleaded and cried, not upset by his dalliance, afraid for him because of his cousin. You wept until dawn, calling Cersei a predator, telling him he didn't understand what he was getting himself into. He'd never seen you so distraught. he took you into his arms and held you until the fight went out of you. You've protected his secret since, afraid for his life, and yet he sees the torment in your pretty gaze.
Cersei makes him feel powerful, he tries to convince himself that he caused this and has power from her, but he knows it's a lie. Cersei doesn't even want him, she only sleeps with him because Jaime is being held captive. He doesn't know how to stop now he has started and he hates himself for it. His father would be devastated, furious at Cersei, his mother would break and his siblings would never look at him the same, they always liked you, maybe he should just marry you now, ask the new king Joffrey, Cersei's son to arrange a wedding. He would be happily married to you