Im bothered by her attitude too, but i do understand why she is doing that. She is is both scared and guilty for becoming the grand duchess. She doesnt want to get emotionally hurt because she thinks cedric and the blond chick will fall in live again. Additionally, she actually respects her so that adds guilt into that factor.
U know even if she get reincarnated the way she do it and the way she act is not good and the guilt she felt would be piled up if the way she's doing would do anything good for the three of them and it's not her fault also she's not a goddamn matchmaker for god sake.. If she's gonna make ammends for her guilt or whatcha call for that why don't just tell him everything to put and end to it... Correct me if I'm wrong..
What the hell is wrong with you girly, I'm angry with u right now truly.. It pissed me off to see your attitude like that