The male lead loves the villainess but she prefers the third wheel

Omalia is living in the world of a web novel she wrote in a life in a different world. She knows she will be heartbroken if she falls in love with the twin knight Marceau, so she closes her heart off to him. The threads of fate have different plans and she is once again entangled in a royal affair, except this time with his twin brother, the crown prince Landis. Who is the male lead in her story now?