Responses
She's butt hurt because she thought that things are gonna change. She did have a back up plan (being a knight). But when she thought things are finally changing from the past, she thought that it's going back to the original route because of Jieun's appearance. She thought that God was playing with her. I agree, though.

This whole time she wasn't even trying to gain the prince's attention bc she knew what was eventually gunna happen. Even if she started to believe maybe the prince is changing a bit, she still had a whole plan to turn away from being tied to as a queen anyways and was working desperately hard to becoming a knight. I don't see why she's bothering to go to the temple and complaining about being set back in time now when she had already accepted the idea of the prince will follow the same path again. I don't understand why she is being butt hurt now when she's been making every opportunity she can to settle everything before the heroine arrives. Like what are you hoping to discover at the temple?