HELP FINDING TITLE!!!

I forgot the name but it was a manhwa featuring a blonde, green-eyed female lead with an evil sister, involving magic symbols indicating fated partners, and a complex relationship with a villainous male lead (I think the sisters may have been twins or just look identical idk)

She tried to like carve out her symbol because it wasn't the same as the man she loved and was in a lot of pain becuz of it or something

I asked chatgpt, tiktok, and literally everything but I cannot find the title for some reason... please help!!! 😢😢😢