Does anyone knows?

I read this promo long time ago and I can't find it, My summary might not be accurate since I read it way back highschool and I might mix some story as well since I read the novel before and its new. Basically, It's a fantasy manhwa with reincarnation probably, MC keep stalking ML, she's quiet obsessive to him and even became a knight to stalk him. Then she remember her past life or something, and decided to stop.
If I remember Ml doesn't believe her so she trying to prove that she's no longer interested in him. I also remember that knights hate her because all she did is stalk him and nothing else. In novel she trying to gain their trust again through cooking?. That was all I remember.